What video format can be played on K850?

Thanks for the reply, but I think I din get myself clear. What I man is what video format, like 3gp, rmvb, mpeg, avi and such.

Thanks a lot, so it does not support 3gp2?

Er guys, y my battery got abit problem?
Even i turn off my K850, but it still reduce d %....

Eg. from 11.30pm till next day 9.30... it reduce 4% of battery life...
y it will reduce? although i turn off it and din use it anymore at tat time...
can some1 gv me an idea?

Thx~

Some more questions :

1) If I charge my phone from night to morning, why will the battery still 98%?

2) How long do I need to charge my phone? The manual say 2.5 Hours, but I am not sure of it. Furthermore, if the battry is fulled, but I still let it connected with the charger and let the switch on, will it damage my battery?

3) When should I charge my phone? When it was totally drained or about 10+ %?