DVD backup copy

I'm trying to make backup copies of my 3-yr olds DVDs, and after that DVD copies of our VHS tapes. The DVD I burned last night wouldn't play on the computer or in our DVD player. Here's the story. I found this great link on google:

thread-8575a21d0647dc15-33985bcc70029c54?q=copy+dvd+group:*linux*&rnum=1#33985bcc70029c54

I had to break the above single line to post this

Earlier I ripped my DVD with Video-DVDRip which made a bunch of VOB files. I made streams of the VOB files like this (tcsh syntax):

cat vob-001-* tccat -t dvd -T 1 -L -P

I made an MPEG file from that like this:

mplex -f 8 -o backup.mpeg backup.m2v backup.ac3

The backup.mpeg file plays just fine using Mplayer. I think everything is OK up to this point. After this I'm not so sure. Next I got the chapter time points like this:

grep -i '-chapter ..-' tmp-backup.rip tail -28 head -25 cut -d " " -f 4 perl -pi -e 's--n-,-' perl -pi -e 's-,$--'

The tail & head stuff is peculiar to the number of breastles on the DVD being copied. The 2nd breastle on my DVD is what I want a copy of and it's got 25 chapters. Next I need to author the DVD and I did this:

dvdauthor -t -c `cat chapter.list` -o backup backup.mpeg

dvdauthor -T -o backup

After that my backup directory looks like this:

backup -- AUDIOTS `-- VIDEOTS -- VIDEOTS.BUP -- VIDEOTS.IFO -- VTS010.BUP -- VTS010.IFO -- VTS011.VOB -- VTS012.VOB -- VTS013.VOB `-- VTS014.VOB

It seems strange to me that AUDIOTS is empty. Maybe that doesn't matter. Then the info at the link above suggests to make and burn an ISO image like so:

mkisofs -dvd-video -o backup.iso backup

dvdrecord dev=-dev-dvd backup.iso

I did the first step. I don't have dvdrecord and I've successfully used cdrecord (to make the Mandrake PowerPack DVD install media for instance) much like this:

cdrecord -v speed=1 dev=-dev-hdc driver=mmcmdvd -dao backup.iso

The resulting burned DVD isn't recognized as an ISO filesystem in my computer. Nor is it recognized as a DVD video disk in my computer nor DVD player.

What can I do better to get a playable DVD video copy? Should I used the ripped data from Video-DVDRip directly somehow? Are the above steps up to this task? Is there something else that would work?

Thanks....

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