If you're discussing a video release, hardcore parties often have documentation or coverage in the form of videos, and these can be distributed through various means, including DVDs. The notation "dvdriavi" could refer to a specific type of rip or encoding of the video, and "patched" might indicate that the video file has been modified or updated in some way, possibly to fix errors, improve quality, or for other technical reasons. Triangle 2009 Hindi Dubbed Work Audience Realizes That