If you open up the mStation itself, you'll find an efficient, if standard, Fujitsu 10Gb hard disk. This bay provides the EIDE and power connections to the PC, and has a fan at the rear to stop the plastic-encased hard drive from cooking. Sadly, it's not hot-swappable, and the system will only recognise the mStation when the drive is locked in via the key provided. Once inside, it can be treated as a normal hard disk, so you can drag and drop your music files onto it. CDs can be transferred directly or indirectly using the included RealJukebox and arranged into as many subdirectories as you wish.
Compatible formats are limited.
PCM wave files are also supported, but have a much greater thirst for storage space, and, at high kilohertz rates, fewer would fit on the 10Gb disk. The car bay can be installed in the boot or, more logically, under the seat. Traxdata recommends that a qualified mechanic install the car side of things, although it insists that the warranty won't be broken if you do try and have a go yourself. The setup in the car is actually very simple, as it acts just like a CD changer. Track changes and volume are controlled purely through the headset and a similar-style wired remote, and an infrared is included.