Sessions & Tracks : File and Session Management and Compatibility : Sharing Sessions Created on Different Pro Tools Software Versions : Saving Pro Tools 10.x Sessions to Pro Tools 5.1 -> 6.9 Format
Saving Pro Tools 10.x Sessions to Pro Tools 5.1 -> 6.9 Format
Pro Tools 7.x and higher sessions cannot be opened with Pro Tools versions 6.9.x through 5.1.
To save a Pro Tools 10.x session so it is compatible with Pro Tools version 6.9.x through 5.1, use the File > Save Copy In command to choose the Pro Tools 5.1 -> 6.9 Session format.
*
Pro Tools 8.x and higher supports file sizes up to 3.4 GB, and Pro Tools 10 sessions support file sizes over 4 GB. However, Pro Tools 5.1 through 6.9 on Mac only supports file sizes up to 2 GB. If your session references audio files larger than 2 GB, be sure to edit and consolidate clips as necessary to reference only files smaller than 2 GB.
When saving a Pro Tools 10.x session to Pro Tools 5.1 -> 6.9 format, the following occurs:
*   
All that occurs when saving a Pro Tools 10.x session to Pro Tools 7–>9 session format.
Tracks
*   
Any audio tracks beyond 256 are removed.
*   
Any internal mix busses beyond 128 are removed.
*   
Output bus assignments are removed.
*   
HEAT (if present) is removed.
*   
Elastic Audio-enabled tracks are saved untransposed, unwarped, and clip durations revert to the timing of the original source file.
*   
Instrument tracks are split into separate Auxiliary Input and MIDI tracks.
*   
VCA Master tracks are removed and VCA automation is coalesced to the corresponding slave tracks.
*   
Trim automation playlists are coalesced to their corresponding automation playlists.
*   
Fader Gain levels and automation breakpoints higher than +6 dB are changed to +6 dB.
*   
Long names are shortened to 31 characters.
*   
The following attributes are dropped:
*   
Clip groups
*   
Clip loops
*   
Sample-based MIDI clips
*   
Sample-based MIDI tracks
*   
Inserts F–J and any associated automation
*   
Sends F–J and any associated automation
*   
Marker/Memory Locations 201–999
Groups
*   
All groups beyond the first 26 (Bank 1, Groups a–z) are dropped.
*   
Mix Groups keep only Main Volume information.
*   
Mix/Edit Groups keep only Main Volume and Automation Mode information.
*   
Automation overflow information for grouped controls is not preserved.
*   
Group behavior of Solos, LFEs, Mutes, Send Levels, Send Mutes is not preserved.
*   
Solo Mode and Solo Latch settings are dropped.
Video
*   
Only the main video track is displayed.
*   
Only the first QuickTime movie in the session is displayed or played back.
*   
If the session contains QuickTime movies in the Clip List but no video track, the session opens with a new QuickTime Movie track containing the first QuickTime movie from the Clip List.
*   
The Timeline displays and plays back only the video playlist that was last active. Alternate video playlists are not available.
*   
Video clips and video clip groups are not shown or saved.
Language Compatibility
*   
The Limit Character Set option must be enabled and you must select a single language and character set.