Robert at HomeTheater.About.com has a review of the JVC XV-NP10S Progressive Scan DVD Player. He reviewed a region code free version and says:

In terms of Code Free compatibility, the JVC played all of the region 2,3, or 4 discs I had available. The PAL-to-NTSC conversion was very good; much better than the Tatung, and did not exhibit any motion or audio-synch artifacts. I could not visually tell I was viewing a PAL disc. In addition, both Region 1 Ed Wood NTSC DVD and the Region 3 Ed Wood NTSC DVD, looked visually identical; the region coding issue did not affect video quality.

If you find a need to play region DVDs, you may want to take a peek at this aftermarket player.

Read the JVC XV-NP10S Progressive Scan DVD Player Review