you can transfer recording from the directTV box to a pc, but you will need a middle machine to make the transfer successful. look for a newelectronx hd pvr on ebay or google it; or try this link
www newelectronx com/proddetail.php?prod=tristar-mx-dvr
once you have it connect to the directTV receiver and press record. Once on the hd pvr transfer it to your computer.