The built in version of Pocket Tunes that comes with the 755p fully supports the device. However the final version of Pocket Tunes 3 (version 3.1.8) was released before the 755p came to market and therefore is not fully supported. this means that some functions, like the automatic screen turn off do not function correctly with Pocket Tunes 3 installed.

Pocket Tunes 4 does fully support the 755p. as does the built in version of Pocket Tunes that came with the 755p. If you are currently a registered Pocket Tunes 3 customer, you have a couple of options:

1) You can upgrade to Pocket Tunes 4. Simply enter your current Registration Code on this page http://www.pocket-tunes.com/upgrade.html to get a discount off the price of upgrading to Pocket Tunes 4.

Or

2) You can use the built in version of Pocket Tunes. This has fewer features than you may be used to, but it will play MP3 files. For a comparison of the features between Pocket Tunes Deluxe, Basic and the Bundled (built-in) version see this chart.