mpeg用咩先可以睇到？

Friend,
Please try to do the following :
1. install the codec for your PC multimedia formats.
http://www.free-codecs.com/Codec_Pack_All_in_1_download.htm
2. install Media Player Classic which will be the player that support all the formats.
http://www.free-codecs.com/Media_Player_Classic_download.htm
after download and install #1. and #2.
You can open the mpeg file with #2.
and it should play for you given that your PC is healthy :)
good luck