An Epiphany


So, having had a bit too much to drink last week I stumbled up to bed expecting the wife to shut things down appropriately. She turned everything off except the turntable which she left running in the run out groove which I did not catch until the next day. I wondered how much damage this might actually do so I took another record and recorded it's run out groove with Pure Vinyl in 192/24 then played it overnight. In comparing the two I could not make out even a shred of difference. Now obviously a run out groove is not near as complex as music but it is a bit hard to play the same groove of music over and over again for 12 hours. What about 50k PSI turning vinyl into liquid? Why doesn't the stylus eat it's way to the other side? I played that same groove approximately 24,000 times and it sounded exactly the same.
Go figure.
128x128mijostyn
Sounds like you two may need to review the SOPs you have in place for dealing with routine overdrinking.
Well for sure the stylus is wearing away the vinyl. Of that there is no doubt. Go look real close at the front of any cartridge that has been playing a long time. That thin layer of black dust is record vinyl scraped up by the stylus banging around back and forth chipping little bits off the groove walls.

Which if you imagine it carving along like a skier sorry wrong go listen to Ledermann talk about jitter.

Even tracking a perfectly smooth straight groove, which would be dead silent with virtually zero wear, what happens is the tiniest vibration gets the stylus/cantilever/suspension/motor mass vibrating at whatever its inherent resonance is, and this resonance is the "groove noise" you hear, which is really the stylus being banged back and forth bouncing off the walls like a drunk stumbling down an alley.

There's your record wear. Its so teeny tiny though you could play the thing for centuries, if not millennia, going through a lot of styli in the process, before it would wear through the record.
What the OP is talking about is the audiophile BS about the pressure of the stylus bringing the vinyl up to melting temperature and the LP need hours to recover before being played again.   It's always been nonsense.
Thank you rwortman. No only that but I never have any "black stuff" on my stylus. Millercarbon you got to stop smoking those cigars or start using a dust cover. Vinyl is very amorphous stuff. It adheres to itself very strongly. So strongly that when cool thousands of PSI can not displace it. 
There is only one other substance, a polysomethingorother that would make better records but it is cost prohibitive. I have records that are 60 years old and still quite listenable although my record hygiene was not the best back then.