Star Wars Arcade hangs in second level

[twinfami]

Got up to the second level where you destroy TIE fighters with the Star Destroyers attacking you.

It froze after about thirty seconds of play with the music still going. After leaving it for about a few minutes, the music froze as well.

Using a Digital I/O board and a Dual SDRAM set up.

EDIT: So switching the ROM Storage to SDRAM seems to have fixed the freezing for now. Been playing for ten minutes since then and no freeze. Playing this for now, one would have to switch ROM Storage to SDRAM

[twinfami]

After about thirty minutes this time, it froze again. Don't know if it's random or what.