VHS tapes are not playing correctly! (Videotape was crumpled?)

[rappy]

Ok. So things are going great with my captures. I have a tape that is a little crumpled and keeps getting caught up in the jvc 99000u. So I take a new case and switch out the reel in the new case. As I was doing this I was capturing a good tape with no problems. I put in the "fixed tape" so see if my handy work.....we'll worked. The tape didn't get caught, but it doesn't play right. It's basically a black screen, with a bunch of "noise". Not like the black and white snow noise, but rather a very dark screen. But when I fast forward the image plays correctly! I thought it was something wrong with the repaired tape, but I put in the other tape that until a few minutes ago played just fine.....and just my luck, it's doing the same thing!!!

What did I do????

EDIT:
Got a little scare there. Tapes seem to be playing fine now. Not sure why though?. I hope it doesn't happen again. For safe measure, I cleaned the video head with a little (91%) alcohol and a piece of paper (based on threads I read here). I do have a question regarding cleaning, but I will ask on the general forum.

[volksjager]

yes that sound like the crumpled tape may have shed some oxide onto the head.
avoid playing crumpled tape if you can and if you must clean after wards
i prefer chamois to paper as well

[lordsmurf]

Did you see anything on the cleaning swab?

- If so, volksjager is right. It's a good guess.
- If not, something else is at fault. And we'd need to still keep guessing.

But given all the data, it does sound like the most likely reasoning to me as well.

[rappy]

Have not had any issues since! Knock on wood