Sony's third-generation console is primed for new firmware, set to arrive later today and looking to be an audio-centric refresh. Version 4.20 improves support for Sony's PlayStation 3 Wireless Stereo Headset, which had some troubles with the last update. You can now turn off the option to hear your own voice ringing through your head, or pick from five different volume levels. There's also a new option to add virtual surround sound on Blu-ray and DVD playback to the ear-warmers, as well adjustments to how long the whole system will run before shutting itself down and the ability to save files in bulk. Hit up the official source for the full update rundown.