Just installed DVD region free (latest version) on a new Acer laptop. Ultra DMA appears to be enabled (checked system/hardware/device manager). DVD drive is region 2.
Players used Ultra DVD/WinDVD 7/Acer Arcade.
All three play a region 2 and region free disc fine. Any other region and the playback is very jerky.
Trying to copy the DVD to the HDD, record time is around 500 minutes (on last laptop it was around 40 minutes)!