ROK have released the specifications required to run their player on your Windows Mobile device.

The device specification for the Windows DVC version is: 

1 - Windows Mobile 2003 SE Pocket PC edition 
2 - Screen size of 320x240 
3 - A processor speed of 266MHz or greater 

Please Note: MMC's will work on all Windows Mobile Memory Card Slots
(SDIO)

How to check your device specification 

1 - Select Start then Settings. 
2 - Select System. 
3 - Select About. 
4 - Here you will find details of your operating system version. 
5 - Select OK. 
6 - Select Device Information. 
7 - Select Hardware. 
8 - Here you will find details of your processor speed and screen
resolution. 

Visit the ROK player site here.