I have an old ISA ASound Gold AS007 sound card in my MAME cab, in pure DOS MAME it has a background hiss. In Windows 98 SE MAME runs fine with no hiss at all. Is background hiss normal for a pure DOS MAME/ISA sound card system? So far this is the only card I've found that will work in DOS MAME. The version of MAME is pretty old also, 1-1/2 years at least.