Best commercial press for flattening warped LP's

The very best? It's said to be the Air Tight Record Flatter. Made in Japan, and has to be ordered from there at a very cool $1,700.00. Nevertheless it is said to work, and it is the only such device I know of which has that reputation. I know one person who has one, and he says it works.

You can find a good deal of info, including some from people who have actually tried various techniques, at Audio Asylum. Record dewarping is a very tricky business and one is better off trying things out on junk records to start with.

If I had any warped treasures, I would join a local audio club, then propose we undertake a fundraising campaign for a Record Flatter.