QUOTE (freshburn @ Jan 22 2007, 12:43 PM)

It's the media and the DVD Player. If it works fine in one player or the Mac DVD Player and doesn't work on another, it's the media and player combination. Use Taiyo Yuden or Verbatim media. Anything else could cause problems. Also, 16x media may not work on some DVD Players because the reflectivity is different.
Nope. I'm 100% positive now it's an encoding bug in Toast 8, at least for some DVD players.
Here's what has been done to prove it's a bug in Toast 8:
Same media that's been used by Toast 7 in the past and played on the now-jerky-playing DVD player (DVD-RW, just for the record)
I'm using the same TV shows (One is "Heroes" and one is "30 Minute Meals", again, just for the record).
I had to export them, obviously, to use them outside of Toast, but I used the exported video in both test burns. "30 Minute Meals" was saved as an MP4. "Heroes" was saved as a(n) AVI file (processed with ffmepgx).
Both of these "non-native Tivo" formats were used in both test burns. We now have the same media, the same TV shows. The difference was encoding. One test was Toast 8. The result: Jerky video.
I encoded the DVD with iDVD, using the same media and the same video files. The result: smooth playing video.
It's now rather apparent to me that there's a bug in the encoding. While it may play smoothly on some (most?) DVD players, there are apparently a few (our problem machine is a JVC one) that have issues with the way Toast is encoding the video.