Predicament

The other day I found a Xbox 360 game that had been kept away for several years, I didn't even know I had it. So I wanted to play it again, but I don't have an Xbox 360 anymore, so I wanted to play it on a Xbox 360 emulator. I wanted to extract the contents
of the CD, but there were only a few files which added up to around 200 MB, when the actual size of the game should be like 7 GB, therefore I thought the CD was damaged. I tried to a few things like trying to restore the data of the CD and fixing it, but didn't
get anything out of that, it still showed the same files. I ended up throwing it, thought of pirating the game to see how to contents of the ISO was like and I found the same files, at that moment I felt so dumb and kept questioning myself as to why I threw
the CD. All I had to do was just create an ISO file from the CD, which I already did in Linux when I was trying to recover the files from it but deleted it, because when I viewed the contents of the ISO they showed the same files even though the ISO was 7
GB. And finally the question, should I keep the pirated version of the game even though it is illegal, but in my case where I owned the game and threw it like an idiot, is it OK? (Kind of a silly question)

:)