Oh yeah, these.

I had the same problem in an IBM rebranded drive. It wouldn't read discs at all. I don't even question these caps anymore. They are replaced on sight if they are more than 10 years old.

Also, I was impressed with the build quality of this particular drive, it is massive and it has a voice coil laser mechanism, which just screams high quality all around.

Click to expand...

That was all they had in the early days. It wasn't until the late 80's at the soonest that we started to see mechanical servo mechanisms.