I tried searching google but all the reviews I read none of them answered 3 questions I had.

1)Does the Zen:M support external subtitles (srt, sub, etc.)? If so, what formats?

2)I was reading in a one review that Every 10mins or so the buffer would reset and the video would skip for a second or two. Has anybody else had this issue?

3)If its plugged into the ac adapter, will the device still function. Like you can still play music, watch vids, move around the menu's when its charging?

I have a older Creative Zen 30gb and I can still use it when charging but someone did some research on various other models of mp3 players and he said that on some you can't.

I would really appreciate feedback from users before I buy

Thanks.