A new firmware upgrade for Sony’s PlayStation 3 has been released, bringing the usual little fixes and subtle changes to the console. Firmware version 1.90, which is only available in Japan at the moment, includes higher bit rates for CD playback, tweaked 1080p 24Hz Blu-ray output settings, and AVCHD support for playing files straight from a memory or digital camera.

Other changes include lots of little improvements, but no major new things. For instance users can now select a XMB desktop background, rearrange games stored on your PS3 hard drive, eject discs using the option menu, and use emoticons.

North American and European PlayStation 3 owners will be able to download the new firmware tomorrow. Additionally, the Sony PSP firmware 3.52 will reportedly also be available tomorrow, featuring improved support for PlayStation Network games.