I picked up a 'Vinyl Flat' thing with heated pouch for flattening warped disks. It works if you have the balls to let it sit for quite a few hours heated. I've had success on some 7" that I was prepared to lose. It's also rendered one or 2 lightly warped 12" flat and one really bad one but that took months of short hot sessions and cold pressing. It was a rare one so I'm happy it came good in the long run.
I wouldn't pay to import one but they do come up second hand and they're useful in some situations.
I picked up a 'Vinyl Flat' thing with heated pouch for flattening warped disks. It works if you have the balls to let it sit for quite a few hours heated. I've had success on some 7" that I was prepared to lose. It's also rendered one or 2 lightly warped 12" flat and one really bad one but that took months of short hot sessions and cold pressing. It was a rare one so I'm happy it came good in the long run.
I wouldn't pay to import one but they do come up second hand and they're useful in some situations.