I once had a 1x CDROM. I used it to clean mailing lists by comparing them to the Post Office's CD of every address in the US. It's the sort of process I'd start at night, and it would finish in the morning.

I loaned the drive to my brother once I got a different job, and he broke it. I miss it now - I think it might be a collector's item! I wonder how much I could get for something like that on one of the auction sites?

Anyway, I felt like such an alpha geek, having one of the first CDROMS. Those were the days!