Yeah, needle in the groove. Whenever I think of record grooves, I think of this record. Do you think your cartridge could track this record? It's the infamous 1812 Overture on the Telarc label from 1979, one of the earliest digital recordings released. I had a Thorens TD 160 with a Shure cartridge at the time, and I had to put the tracking force to the maximum to keep in the groove, and even then it would skip right out of the groove sometimes. I think you can see some damage to the grooves I probably did doing that. Those cannon shots!! I'll bet it messed up some amps and speakers over the course of time too.