I'm not totally sure yet, but there may be some new issues regarding playback with the Williams/Midway 34010 games in Beta 8 on the DOS version.(posted 9877 days ago)I made an MK recording right now and got the feeling that I screwed up two of the digits in the text file, so I played it back. Didn't get past the first guy, even though I recorded and played back with no sound.
I just tried playing back my Total Carnage prototype recording, and it screws up on the first extra room. :( Of course, I had it on frameskip 3 with speed throttled, but I doubt this affects it. However, the Smash TV revision 5 one seemed to work fine for the first few minutes... not sure if it screws up later, I didn't playback the whole thing but I'm going to right now.
I think having a list of all the games that are picky about how you record/playback the games would be a good idea... since now that I think about it, there's a surprising amount of games where strict conditions have to be met for it to work right.
At any rate, I think I'm going to stick with recording other games for now, especially the Neo-Geo ones. :) The improved sound rocks hard!
-BBH