Help on DRM

Hey, Any of you please help me on transferring protected music to my removable flash player from my PC.

Precisely, I want to transfer my protected media files including audio and video <MP3/4, WMA/V, ASF> to my portable player <A/V Device> such that these files still work. I do not have or need any extra programs to transfer music to my device means I transfer directly as drag 'n drop. But while doing so protected music files get transferred but doesn't get played.

Alternatingly, I when I transfer protected WMA/V files from Windows Media Player <ver 10> to the device,  protection is not set to respective files in the device. Consequently files get played but no copyright is intact... and this is going to make my protected files vulnerable.

Please, get me thru.