thought i would give this a whirl :)

Welcome to AF! Glad to have you here!

IMO, this really is the best android forum on the net.

 

Welcome to the Android Forums!

It's possible that the video clips you are attempting to view on your phone are encoded with a codec that's not supported by your phone...

 

According to the spec's on your phone, it has a media player installed that should support the following formats:

* MP4
* DivX
* XviD
* WMV
* H.264
* H.263

Samsung I5801 Galaxy Apollo - Full phone specifications

When your video file was converted into a digital format it was converted using a CODEC (Coder-Decoder). This program is typically used to encode the video stream into a specified compression format. Some compression formats take up lots of disk space while others take up much less disk space. The trade-off between the different formats is the amount of detail stored.

When a codec is used that the player doesn't necessarily understand, you will typically run into challenges of being able to see the video but not hear it... or hear it but not see it.

The typical solution is to either re-encode the video stream in a compatible format... or install (and use) a different media player on your phone, one that supports the codec in question.