Some DVD-R's won't play!

[wulf109]

I tried playing DVD-R on my old Toshiba SD1009 and came to find that it won't play any burned with Nero in UDF/ISO format but it will play them if burned with Nero 6's DVD Video template and any burned with CloneDVD's burning module. I asked this question before but got no answer. I just bought a cheap Polaroid DVD player at Best Buy and basicilly the same problem. DVD-R's burned in UDF/ISO won't play,it defaults to a menu and really doesn't work,it will play DVD-R burned wtih Nero 6 DVDVideo template. I returned the Polaroid because it just it was such a piece of junk,don't waste your time buying one.
But the question remains why won't UDF/ISO burns play on some DVD players. If you look at the file structure they appear the same as ones burned with the DVD Video template?

[Bodene]

The easy answer is.....stop using the UDF/ISO mode, if the DVD-Video mode works for u. I use DVD-Video mode in Nero v6 exclusively to burn my DVD's. I've never even tried using UDF/ISO. That's the whole reason they put the DVD-Video mode in there, so it'd be easy. However, if it's just buggin the crap outta ya....here's what I'm thinking:

1) Are you putting the bup, ifo, and vob files into a folder named exactly VIDEO_TS (all caps) and burning the entire folder onto the DVD in UDF/ISO mode?

2) Are you positive that you aren't doing a multisession burn when using the UDF/ISO mode? If your burn was a multisession, you get the *freeze* thang like you report.