What is the new session file format introduced in Pro Tools 10?

The session file format introduced in Pro Tools 10 is .ptx. This format was a significant advancement over previous formats, as it allowed for enhanced session management features. The .ptx format supports greater capacity for session file sizes, improved compatibility with other Pro Tools features, and better handling of audio tracks, MIDI, and other session elements. Additionally, this new format allows for the use of playlists, which enables users to easily manage different takes or versions of recordings within the same session.

The previous formats, such as .ptf and others, do not have these updated capabilities, making .ptx the preferred choice for users working with Pro Tools 10 and above.