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The DVD Upgrade is an advanced modification to your DVD player, which adds extra features and enables you to get more from your machine. The upgrade supplements the DVD player and in no way harms the playback quality or removes any performance features of the machine.
The following DVD players are supported by this version of the DVD Upgrade:
Sony DAV-C700 Sony DAV-S400 Sony DAV-S500 Sony DAV-S800 Sony CMT-S9D
Macrovision & CGMS disable
All DVD players have a system called Macrovision built in to the player, which is designed to stop the copying of DVD discs to video. However, this system can have adverse affects on some projectors. For this reason the DVD MOD Upgrade disables Macrovision to solve any problems.
Put your player into „Standby“ Mode and enter one of the following commands if necessary:
Remote control command Function  [ENTER] Default Default region code on the player  [ENTER] Region 1  [ENTER] Region 2  [ENTER] Region 3  [ENTER] Region 4  [ENTER] Region 5  [ENTER] Region 6  [ENTER] Region 7  [ENTER] Region 8 [Arrow down] [ENTER] Only play DVDs with the selected region; auto switching OFF [Arrow up] [ENTER] Default Auto switching ON [PREV I<<] [ENTER] Enable video interference impulses (Macrovision ON) [NEXT >>I] [ENTER] Default Disable video interference impulses (Macrovision OFF) [Arrow left] [ENTER] Enable user operation prohibitions* and access restrictions [Arrow right] [ENTER] Default Disable user operation prohibitions* and access restrictions
* The DVD can no longer prohibit you from using the fast-forward, chapter change or Audio-/Subtitle-/Angle switch. You can no longer be forced to watch intros. Just press [TITLE] or [DVD MENU] and select PLAY.
It's interesting that your DVD player was purchased in Russia but plays Region 1 DVDs. Region 1 is North America. Does your Player also play Russian DVDs (region 5)? If so, then it has probably been modified to play DVDs from multiple regions.
Check the back side of the DVD player - the rear panel should have a Region number on it. If the region number is 1, then try playing a Region 5 DVD. If it reads the DVD, then the modification that was done in Russia will probably allow it to read any DVD. IF the Region 5 DVD won't play (or if it is ejected automatically), then your player's region control os still intact, and it will only play DVDs from the same region as the one listed on the rear panel of the player (or DVDs marked "ALL").
I hope this helps - please let me know if I can be of any further assistance.