The term "patched" could imply that there's been an update or a fix applied to something related to Classic FLV, possibly referring to:
for processing audio or video files, or potentially to community-restored (patched) versions of vintage media originally in the FLV (Flash Video) Stack Overflow
: The original uploads of " Evolution of Dance ," " Charlie Bit My Finger ," and " Chocolate Rain " were all initially distributed in FLV containers.