Originally Posted by anurag
If Scribd's PDFs can be read on the Sony Reader but not the Kindle DX, they've probably adopted Adobe's DRM. Is Adobe's DRM becoming a standard?
Adobe's DRM is a standard, in the sense that it is widely available and has been for years (for PDFs). It is the only DRM scheme for ePub, although FictionWise has talked about eReader DRM for ePubs.
What is interesting about the Scribd store is that it will add Adobe DRM to PDF and ePubs for you (their ePub support is either new or not yet available). I am not a fan of DRM, but this is the only inexpensive way I know of for independent authors to sell DRMed PDFs and ePubs.