Zelda Side A working, but Side B Error 27

[Bennyboo]

Alright guys, I'm hours of research is into this already,. I'm awaiting new FDS games in the mail to be 100% sure, but decided to make the thread while I wait, and hopefully I can actually give a solid explanation for someone in the future. Zelda was working perfectly, decided to clear the old saves and make a new one, cleared them, tried to make the new save, and got an error 27. Reset to title, flip to B and its an instant Err27. Side A loading easily, B non functional. Fast forward through the research and here's what I've done; Cleaned read head, replaced belt, re-calibrated spindle (and I know I have this right, this is not my issue at this point), and adjusted motor speed. Side A will load into the title perfectly well. Side B is error 27 after loading screen without fail. I don't want to mess with head calibration. I'll mess it up, the spindle was bad enough, but I can still try replacing the felt pad. Anyway guys, this is the best forum for this anywhere, and I need just a little more  I feel like I've done most there is to do, but the white text of ERR 27 is haunting my dreams and without more games to test with I just don't know how to really know its not a dead system or something so I can go ahead and buy a new one, or maybe a new TwinFC instead. Or if it's my Zelda Disk, and I can still return it before the 30 days are up on Ebay. It really sucks since that's the only one I wanted to play really anyway. Thanks guys,  let me know what you think.

[P]

Well since error 27 is CRC error it could just mean that side B is corrupted or damaged. Testing more disks won't hurt though.

[petsematary]

Yeah, I'd imagine it is a disk issue since side A is reading. Maybe something in the drive scratched the disk during the erasing/saving procedure? Have you spun the disk to see if you can notice any abrasions?

[Bennyboo]

Yeah, I couldn't see any blemishes or scratches, I just assumed it corrupted the disk trying to load. My new disks will be in later this week so we'll see. I feel a little better about it though, I was really worried it was the system.

[P]

Yeah if it was the system you would probably get a block error or something, not just a CRC error.

When clearing the save files, you used the in game file kill mode right?

[Bennyboo]

Yes, kill mode, wiped the saves, started a new file named link and it 27'd while saving

[P]

Don't name the first file "LINK", it causes some kind of cheat that makes items disappear and stuff. Use your own name (or pick file 2 or 3 if you really want to name a file "LINK"). Anyway that shouldn't corrupt the disk though.

[Bennyboo]

New games came in, def corrupted Side B. Only the Zelda and one other didn't work, Err 27/24. Feel better about it, system is good.

[P]

Good for you. I wonder what corrupted the disk side though. I guess it could be any number of things that happened.

[Bennyboo]

Yeah, it is weird, writing a save file corrupted. oh well. anyone buying dead disks?