There are lots of these and they are interesting because the first part suggests a date, 29/11/12, and the second part suggests a sequential number. The size is almost 6 gig.
Aaaaand I'm glad I didn't look that one up on the work PC.
I'm assuming you can get the filename info by looking at either the RAR headers or the first archive.
"291112_08_29" (60 rars)
There are lots of these and they are interesting because the first part suggests a date, 29/11/12, and the second part suggests a sequential number. The size is almost 6 gig.