Sound problem:
Make sure alle your mp3 files are 192kbps 44khz stereo, and if you have ogg convert them to mp3 192 than to wav.
You must rename all the tracks to Track_01, Track_02 and so on you get the picture. Track_01 is always the iso/bin and if you have only a bin/cue file you can skip the above.
Glitch Problem:
Just do a 50/60 Hz mod on your saturn becouse some games require 60 Hz, like xmen vs sf, msh vs sf, vampire savior and other game that have glitches like scrambled backgrounds and characters.
Here is a link for the mod:
http://www.saturn.v21hosting.co.uk/model_1.htm
Bad Copies:
2 things can be wrong, 1st the rom you downloaded is corrupt so download a different one and 2nd is that you did not burn it with the right program!
If you have perfectly good files DON'T BURN THEM WITH CDRWIN, use Nero of Alcohol 120% max 8 speed and keep in mind that some programs don't like spaces in the files like Track 01, use Track_01 got the picture again
i hope this helps some people.
Greetzzz and Godbless!!