Ok, +1 confirm for this problem. Tried to combine it with Markey's Sonic 128 disassembly. Double checked everything. Here is my specific report, via level selecting to Green Hill Zone act 3: --- - The "static" itself lasts as long as the dac drum sample itself, a corruption of the original sound byte. - Invincibility music doesn't affect it. -dying doesn't affect it normally. -hitting a 1up monitor with its jingle causes the dac drums to static. - When getting to the boss arena and the boss music, the dac drums play normal, HOWEVER anything after will have the corrupt dac, including dying. -and of course, going to a new act or the special stage causes the static problem -once activated, none of the above matters, it is always "on" -the only way it gets "fixed" is by getting a game over and going back to the SEGA screen. --- It has to be the way new music is being called up that is causing it.