Snes9x has built in TAS recording, and is up to date (many Snes9x TAS versions are based off of 1.43 BUT, there is a version based off of 1.52, meaning you get the better sound core). Aside from the user-friendly GUI, I don't see why people claim Zsnes to be the best.
I know they have but my laptop didn't support at all with sound while recording. Realitk sound. ZSNES is just fine because it have dump after recording but it take a while to get done. I use SNES9X for recording but no recording in sound. After record and play video, it have audio in there after recording. But why not record in recording?
Random- Well I usually ZSNES because it better than SNES9X that didn't support all kind of system like my laptop.
He means video recording as in dumping to actual audio/video files.
SNES9x 1.53 appears to have both input recording and video dumping though, but I'm not a TASer so I don't know if 1.53 incorporates some of the unofficial recording changes or not.