Ngage QD Video Player needs help

Hi,
I need a lil help here.I downloaded the Kajra Re video which was of 5.7 MB approx. When I transferred the video to the MMC and tried to play the video thru video player of Ngage QD, the video player starts up but immediately a "Unable to play video clip" message comes. I deleted the file and put a fresh copy on the MMC and played it again, but the same message came.
I use a 512MB MMC and there is a good 60 MB memory free after the song is put on the card. What could be the reason and whats the solution??

Also I saw these full movies available for download and I was wondering if a 5.7MB video isnt playing will these files, all of 20MB or more will play in Ngage QD??

Regarding the " No Entry " full movie download available here which player is available to play WMV files on the Ngage?? Or is it for the PC only??

Later when I downloaded the Nach Baliye song video even then the same "Unable to play video clip" message comes.

Please do help with a solution.