A device for properly aligning a removable hard disk cartridge with the moving parts and data transfer head of an associated disk drive. In particular, the device is for use in recording and archiving of digital video and other data. The device includes an integrated pair of elongate spring structures formed from a portion of a housing cover. The elongate springs are configured to extend from the cover to slidingly engage the removable hard disk cartridge. The springs fully constrain the position of the cartridge within the drive to avoid misalignment between the removable hard disk cartridge and the data transfer head and various other moving parts of the disk drive system.