Really weird problem here. Have taken 4 mpeg 1's and put them on a DVD-RW. Now my Pioneer 525 really doesnt like any of them. The Pioneer 444k will play two of them perfectly, but not the other two. The thing is, the mpeg streams are identical. Here's a snip of their details:

ev.m1v
Mpeg 1 Video File
Estimated Duration: 54:42.50s
Size [352 x 240] 29.97 fps 1.15 Mbps

bk.m1v
Mpeg 1 Video File
Estimated Duration: 01:35:40.83s
Size [352 x 240] 29.97 fps 1.15 Mbps

ev plays perfectly, bk does not. Audio encoding for all 4 is the same as well (48khz/192). The audo has been re-encoded but the video has not. I thought at first it might be a bad aspect ratio or something like that, but they appear all the same.

Anyone got any suggestion to help me track down what the problem is ?

Tools used: TMPEGEnc / SpruceUp / Nero 5.5.8 / MPGTX (for mpginfo)