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Hi
A word of advice! Copying a +R or +RW recorded in a set-top recorder to a DVD-R or +R is not the same thing as having a correctly authored DVD-R or +R disc!
Why? Set-top recorders that use +RW or +R do not record completely compliant DVD Video. The navigational stream of the video is out of spec, but works generally in most DVD players but is often the reason for problems with navigating chapters and/or skipping forward and backwards. In future equipment this may cause more problems then they do now and is best corrected if you have the chance. If you find +R doesn’t play very well in your player, but you have been given DVD-Rs that work, so decide to copy to DVD-R and find that resulting DVD-R gives the same problems as the +R disc did, this is because the DVD Player doesn’t like the non-standard navigational data, which was copied like for like to the DVD-R disc.
The worst thing wrong with +RW/+R discs from set-tops is the IFO backup file is often corrupt. On a DVD Video you have the normal file system, then sitting on top of that are instructions to the DVD player on what is on the disc and how to load and play it. This information is held in files ending .IFO. If these files are corrupt or unreadable the whole disc is trash, so a back up of this is also recorded as part of the DVD Video specs and this ends in .BUP. These .BUP files should be identical to the IFO file they are backing up, but often are corrupt or not matching on +RW/+R discs made in set-top recorders. If the original IFO file becomes unreadable, then the .BUP is used so it should be correct; but as these files are often bad on +RW/+R , these discs and the resulting copies are more vulnerable to damage or wear and tear.
Your best bet is to re-author the disc completely for anything important. Simply extract the video using something like DVD Decryptor, set it to give you one VOB file of the title you want, and then import that into your DVD Authoring package. Set up some new menus or chapter points and let the authoring package recreate the Video_TS folder. This will be multiplexed with correct navigational streams and will get new and correct .IFO and .BUP files.
This may be long winded for some, so at the very least, copy the Video_TS folder to your hard-drive (it isn’t encrypted on your own recorded discs), and then delete the .BUP files, make new .BUP files by copying the .IFO files and renaming to .BUP. Then use this Video_TS folder in your burning program to burn the DVD.
This only applys to +RW/+R discs recorded in set-top recorders. DVD-Rs (or DVD-RW in Video mode) from Panasonic or Pioneer set-top recorders are always fully to the DVD spec and copies are fine.
Regards
Philip
Last edited by PhilipL; 03-01-2004 at 5:32 PM.
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