Hello everybody,

I have a major issue with video playback on my system. Now I have Mac OS 10.6.2 but it was the same with previous version of Snow Leopard as well. I've checked it with a lot of movies and a lot of subs, and it's still the same. Surprisingly, my friend with the same os and also on Mac Book Air do not have these problems.

VLC perfectly plays MP4 and other files of any quality without ANY problem, but can't open the same file if it's accompanied by subtitles. I've tried all of the tricks mentioned on the board but with no success. When it hangs trying to open the file with subs the CPU usage goes up to 100%, VLC stops to "reply to the system" and I have to terminate it manually. Same with MKV files with subs.

I've tried to play the same files in MPLAYER OS X extended. It can open and play them, but from time to time the the video starts to slow and lag and then the sound anticipates the video. Sometimes it's possible to watch the whole 30 mins file without any problem, but in order to do this I have to first delete MPLAYER, then logout, login, install it again and run.

In DivX player the video can be opened, but playback hangs in the first seconds, no matter with or without subs.

PLEX opens and plays MP4 smoothly without the subs. If the subs are present, loading takes around a minute, and during the playback the subs are not shown. Actually, the are partly shown - like in the opening of the series, there's a karaoke and it's shown. But nothing after. MKV is not a problem here.

Quicktime opens and plays MP4 video smoothly, but it do not support ASS/SSA subs for MP4, even with perian. It also can play any MKVs (with perian help) but a bit slow.

Also there's a problem with youtube videos - just opening the youtube.com eats out 100% of CPU. Same in Safari and Firefox. BUT! Sometimes it work.

Please help me with any ideas or considerations. I bought this expensive Mac not thinking that it will work as 80486 Dx-2 66

Let me know!