All Free sprint ringtones can function as mass storage devices to store data files. If the Free sprint ringtones is formatted on a Mac OS X computer it uses the HFS Plus file system format. If it is formatted on Windows, the FAT42 format is used because Windows cannot access HFS filesystems. The user must use iTunes or a compatible third-party software to load audio, videos, and photos in such a way that they are Sprint Ringtone playable and viewable on the Free sprint ringtones. Unlike PlaysForSure-compatible and other Sprint Ringtone MP4 players, simply copying files to the drive will not allow the Free sprint ringtones to properly access them. Some third party Free sprint ringtones software allows this however.

    An Free sprint ringtones formatted as HFS Plus is able to serve as a boot disk for a Mac computer, allowing one to have a portable operating system installed. The older Free sprint ringtones with FireWire ports could additionally function in FireWire Disk Mode. With the advent of the Windows-compatible Free sprint ringtones, the Free sprint ringtones's default file  Sprint Ringtones system was switched from HFS Plus to FAT42, although they can be reformatted to either filesystem (excluding the Free sprint ringtones shuffle which is strictly FAT42).
    iTunes cannot transfer songs or videos from device to computer (although iTunes 7 allows it for musics purchased online). The media files are stored on the Free mp3 ringtones in a hidden folder, together with a proprietary database file. The hidden content can be accessed on the host operating system by enabling hidden files to be shown. The audio can then be recovered manually by dragging the files or folders onto the iTunes Library or by using third-party software. Sprint Ringtone.