Remember that neither XP Media Centre Edition or XP Professional 圆4 editions are approved by Digidesign. For Windows, things haven't changed so much, so XP should be OK, especially if you have Service Pack 2 installed. Having bought the upgrades and received the iLok assets for the HD version or a serial number for the LE version, you need to check that your operating system is compatible with Pro Tools 7.3. Go to or contact your dealer in the normal way. There's also an HD-only 7.3 update pack available through dealers, and this includes a hard copy of the printed Reference Guide. The boxed version includes all the other installers and extra stuff that doesn't come with the downloadable version. The 7.3 upgrade can be obtained at a reduced price if you already have 7.2 HD or 7.1 LE.

The new version 7.3 upgrade to Pro Tools is available on-line as a download, or you can buy the installation software on a DVD if you prefer not to have to download 100MB or so of files. In this month's column, we give you the low-down on the wealth of new features coming your way in the version 7.3 updates to Pro Tools TDM and LE.

Pro tools 7.3 to 7.4 upgrade