Help videos issue

[aaronn]

i have just changed from motorola milestone to htc incredible s to sgs2 and i used the same sd card since morola coz it has all my vids n pics taken from the motorola and htc video camcorder. however sgs2 is unable to play .3gp vids from my htc and yet it can play .3gp files from motorola. what is the problem. pls help

 

[sleeco]

Hi, i convert all my video to MP4 with a PC prog called Handbrake, the copy them back to phone.

 

[andy66]

Same problem here!!!!!!!!
I can play a video recorded on my Htc Desire but the ones i recorded on my Desire S wont play?????
ive searched all over but haven't found a fix yet.
All my vids are 3gp aswell.

I know they can be converted but it would be good to know the reason they wont play