I think you should be fine. I recently bought an x50v, and it works just fine for playing movies off my 1GB SD card.
If you're planning on watching movies on your pocketpc, download Pocket DVD Studio. It works wonders for converting just about any video format I've thrown at it (divx, xvid, etc.), to a version that is suitable for watching on my Dell. This makes the file size much much smaller than the original (700mb -> 250mb, depending on settings).
Enjoy!
