blog/Video_DVD_reader_library___python_dvdvideo___nice_free_software.html

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   6     <title>Petter Reinholdtsen: Video DVD reader library / python-dvdvideo - nice free software</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">Video DVD reader library / python-dvdvideo - nice free software</div>
  24       <div class="date">21st March 2014</div>
  25       <div class="body"><p>Keeping your DVD collection safe from scratches and curious
  26 children fingers while still having it available when you want to see a
  27 movie is not straight forward.  My preferred method at the moment is
  28 to store a full copy of the ISO on a hard drive, and use VLC, Popcorn
  29 Hour or other useful players to view the resulting file.  This way the
  30 subtitles and bonus material are still available and using the ISO is
  31 just like inserting the original DVD record in the DVD player.</p>
  32
  33 <p>Earlier I used dd for taking security copies, but it do not handle
  34 DVDs giving read errors (which are quite a few of them).  I've also
  35 tried using
  36 <a href="http://people.skolelinux.org/pere/blog/Ripping_problematic_DVDs_using_dvdbackup_and_genisoimage.html">dvdbackup
  37 and genisoimage</a>, but these days I use the marvellous python library
  38 and program
  39 <a href="http://bblank.thinkmo.de/blog/new-software-python-dvdvideo">python-dvdvideo</a>
  40 written by Bastian Blank.  It is
  41 <a href="http://packages.qa.debian.org/p/python-dvdvideo.html">in Debian
  42 already</a> and the binary package name is python3-dvdvideo. Instead
  43 of trying to read every block from the DVD, it parses the file
  44 structure and figure out which block on the DVD is actually in used,
  45 and only read those blocks from the DVD.  This work surprisingly well,
  46 and I have been able to almost backup my entire DVD collection using
  47 this method.</p>
  48
  49 <p>So far, python-dvdvideo have failed on between 10 and
  50 20 DVDs, which is a small fraction of my collection.  The most common
  51 problem is
  52 <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=720831">DVDs
  53 using UTF-16 instead of UTF-8 characters</a>, which according to
  54 Bastian is against the DVD specification (and seem to cause some
  55 players to fail too).  A rarer problem is what seem to be inconsistent
  56 DVD structures, as the python library
  57 <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=723079">claim
  58 there is a overlap between objects</a>.  An equally rare problem claim
  59 <a href="https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741878">some
  60 value is out of range</a>.  No idea what is going on there.  I wish I
  61 knew enough about the DVD format to fix these, to ensure my movie
  62 collection will stay with me in the future.</p>
  63
  64 <p>So, if you need to keep your DVDs safe, back them up using
  65 python-dvdvideo. :)</p>
  66 </div>
  67
  68       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia</a>, <a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.</div>
  69
  70
  71     </div>
  72
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  77
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  79
  80 <h2>Archive</h2>
  81 <ul>
  82
  83 <li>2018
  84 <ul>
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  86 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
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  93
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  97
  98 </ul></li>
  99
 100 <li>2017
 101 <ul>
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 122
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 124
 125 </ul></li>
 126
 127 <li>2016
 128 <ul>
 129
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 131
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 141
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 143
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 145
 146 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 147
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 149
 150 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 151
 152 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 153
 154 </ul></li>
 155
 156 <li>2015
 157 <ul>
 158
 159 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 160
 161 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 162
 163 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 164
 165 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 166
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 168
 169 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 170
 171 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 172
 173 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 174
 175 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 176
 177 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 178
 179 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 180
 181 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 182
 183 </ul></li>
 184
 185 <li>2014
 186 <ul>
 187
 188 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 189
 190 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 191
 192 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 193
 194 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 197
 198 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 199
 200 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 201
 202 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 203
 204 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 205
 206 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 207
 208 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 209
 210 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 211
 212 </ul></li>
 213
 214 <li>2013
 215 <ul>
 216
 217 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 218
 219 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 220
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 222
 223 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 224
 225 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 226
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 228
 229 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 230
 231 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 232
 233 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 234
 235 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 236
 237 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 238
 239 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 240
 241 </ul></li>
 242
 243 <li>2012
 244 <ul>
 245
 246 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 247
 248 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 249
 250 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 251
 252 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 255
 256 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 257
 258 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 261
 262 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 263
 264 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 265
 266 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 267
 268 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 269
 270 </ul></li>
 271
 272 <li>2011
 273 <ul>
 274
 275 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 276
 277 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 278
 279 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 280
 281 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 284
 285 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 286
 287 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 288
 289 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 290
 291 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 292
 293 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 294
 295 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 296
 297 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 298
 299 </ul></li>
 300
 301 <li>2010
 302 <ul>
 303
 304 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 305
 306 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 307
 308 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 309
 310 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 311
 312 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 313
 314 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 315
 316 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 317
 318 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 319
 320 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 321
 322 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 323
 324 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 325
 326 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 327
 328 </ul></li>
 329
 330 <li>2009
 331 <ul>
 332
 333 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 334
 335 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 336
 337 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 338
 339 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 340
 341 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 342
 343 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 344
 345 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 346
 347 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 348
 349 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 350
 351 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 352
 353 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 354
 355 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 356
 357 </ul></li>
 358
 359 <li>2008
 360 <ul>
 361
 362 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 363
 364 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 365
 366 </ul></li>
 367
 368 </ul>
 369
 370
 371
 372 <h2>Tags</h2>
 373 <ul>
 374
 375  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
 376
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 380
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 392
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 398
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 417  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
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 419  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 420
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 422
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 425  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
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 429  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 430
 431  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 432
 433  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 434
 435  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 436
 437  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
 438
 439  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (10)</a></li>
 440
 441  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
 442
 443  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (190)</a></li>
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 445  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
 446
 447  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 448
 449  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (71)</a></li>
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 451  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
 452
 453  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 454
 455  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 456
 457  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 458
 459  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 460
 461  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
 462
 463  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 464
 465  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
 466
 467  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 468
 469  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (54)</a></li>
 470
 471  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 472
 473  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 474
 475  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
 476
 477  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
 478
 479  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
 480
 481  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
 482
 483  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
 484
 485  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 486
 487  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 488
 489  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (11)</a></li>
 490
 491  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (64)</a></li>
 492
 493  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 494
 495  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
 496
 497 </ul>
 498
 499
 500     </div>
 501     <p style="text-align: right">
 502  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 503 </p>
 504
 505   </body>
 506 </html>