Using your PlayStation Portable as your dedicated music playing device can be a hassle at times, especially when you still have to navigate through the handheld's XMB before listening to your favorite tunes. However, developer roe-ur-boat has devised a homebrew plug-in which allows you to bypass your PSP's startup and immediately run your preferred third-party apps.

The latest version of AutoStart PRX introduces several handy features which extends the program's functionality to a considerable degree. Aside from loading your homebrew apps upon start up, the plug-in can now launch PSone games as well. Here are the rest of the details to AutoStart PRX V4, taken directly from the program's changelog:

Version 4:
You can now bypass the autoboot by putting the WLAN switch up.
You can launch PSX games now too.
Rewrote the configurator and the configuration file parser. Configurator looks better and is more user friendly. (Thanks to Mc Cabe for the background)
PRX size decreased thanks to recoding and psp-packer.
No need to enable the prx for game.txt now.

Before you copy any files into your handheld, please make sure to read the documentation included with the file bundle. You can also leave any feedback you have with the developer by visiting the QJ.NET PSP Development forum and write a line or two on the AutoStart PRX project release thread.