So i'm an idiot!
I downloaded it as a Bin/Cue but the cue must be wrong, it wont work in a saturn and i've never seen a 2048 saturn game before.. THis is what the cue looks like
FILE "PDS_CD4.BIN" BINARY
TRACK 01 MODE1/2352
INDEX 01 00:00:00
TRACK 02 AUDIO
PREGAP 00:02:00
INDEX 01 55:03:07
TRACK 03 AUDIO
INDEX 00 55:11:72
INDEX 01 55:13:71
TRACK 04 AUDIO
INDEX 00 56:45:47
INDEX 01 56:47:46
Edit:: i used nero burning rom, and it says this isn't a good format for burning, so i used BIN CHUNKER and then burned that, ISO and wavs, no good either