Here is the log, but I still don't understand why it works on a regular DVD player and not the portable one? Maybe the portable player can't handle it?
I 13:08:34 ImgBurn Version 2.4.4.0 started!
I 13:08:34 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3)
I 13:08:34 Total Physical Memory: 2,084,628 KB - Available: 1,393,816 KB
I 13:08:34 Initialising SPTI...
I 13:08:34 Searching for SCSI / ATAPI devices...
I 13:08:34 Found 1 DVD-ROM and 1 DVD