AirTV recommends several storage devices, such as the SanDisk Ultra 128 GB Thumb Drive, SanDisk Cruzer Glide 64 GB and 128 GB Thumb Drive, Western Digital My Passport or Easy Store 1 TB Hard Drive, and Seagate Expansion 500 GB Hard Drive. AirTV also notes that while USB thumb drives work for recording and playback, a hard drive is recommended for “optimal performance.”
AirTV also lists out several limitations for the new DVR beta. Among them, recordings are not playable until the program has completely finished recording (though users can continue to each the channel live as the recording is being made); recordings canceled before completion of the program will not be saved to the DVR; and recordings are only viewable via the AirTV Player where the recordings were made (i.e. they can’t be transferred to another device or played back on another AirTV Player), and rescanning for local channels will also remove all future recordings.