The thing is that i was making backups of some of my ps2 originals with isobuster, (original games that I have already added to redump) to play them in my ps2. While checking their CRC, i realized that all of them had a different CRC.
I redumped them again in my other computer (which has XP as OS) and the CRC I obtained it was the ones I posted in this site.
I was afraid of the drive of my W10 had some kind of damage, however, I just decided to restart the computer and to try dumping them again. This time, I obtained the usual previous CRCs...
It looks like there is some kind of a conflict between my drive and the O.S
If this happens again, I will tell you.