Odd problem With burning DVD+R's

[michedlp]

Hey All,
Done some searching and all that, and not found anything of much use... So i have registered to try and find an answer... Great site here BTW!

Ok, So my problem... I'm copying 2 different DVDs, using the IFO, VOB and BUP files(don't ask me why only the files and i won't tell ) . The dvds i burn works fine on computer dvd players. However, once i put it into my standalone, the audio works fine, but the picture jumps... The same way a VHS would when the tracking was off. I'm pretty sure it's not my media, as i have authored other dvds using this media and those work on my player. I've tried as much as i can think of, using different software, burning at different speeds, even upgrading the firmware on my burner(cool thing is now i have a DL burner!). I've made a bunch of coasters, and i'd like this to stop, since these blanks DVD's aren't as cheap and CD's!

Any help would be greatly appreciated. If you need more info, just ask.

Thanks
Miche

The particulars:
Burner : NEC ND-6500 (was ND-6450)
Standalone player : Pioneer DV-333
Software used: Nero and Sonic
Media: Memorex 8x DVD+R

[reboot]

PAL source/framerate/aspect on an NTSC player?