There are a couple of lossless DRM removal tools you can try: 
FairUse4WM and 
drmdbg with 
freeme2 or drm2wmv. They might not be easy to use, but they are lossless!
Soundtaxi Pro+VideoRip and 
Tunebite Platinum can re-record DRM-protected videos. They work like 
screen video capture software. The latter software needs 
hardware acceleration to be turned off (otherwise you get black screen when recording from Windows Media Player).
You should always try software before buying! If 
Soundtaxi Pro+VideoRip doesn't work for you, then contact their support. If they won't be able to help you, get your money back!!! You can also post a more detailed description of your problem here.