I have a standalnoe dvd player which i bought for around $100 in the philippines. I also have a pc-dvd player. This afternoon I bought a fairly new dvd and it worked perfectly on my pc-dvd player. However, my standalone won't play the disk. It plays everything perfectly except 2 or 3 disks from my dvd collection. I'm pretty sure it's a region-free player since it was made in asia. Does anyone have any idea why a dvd will play on a pc-dvd player and not on a standalone player? I tried playing the disk again and after a few minutes of waiting the it started to play the dvd but it was VERY choppy and virtually unwatchable. Any ideas anyone?