hi.

i have the same camcorder. i found that the only player that works is the VLC player.

you can download it here: VLC Media Player - Download

and its free.

i also use sony vegas and it lets me transfer the files straight in with no problems.

i dont know why they only come up sometimes. i always transfer the file onto my computer from the memory stick. it works fine once its on my computer.

hope this helps.

regards

munclesmubb