donebetter: If you want the HD DVR, buy it now. Best price (with rebate) seems to be around $350. When you are converted to MPEG4 (sometime in the next 2 years), Directv will upgrade you with a MPEG4 HD DVR at little or zero cost if you have a HD DVR at that time. Nothing is final on this. Or, of course, you can buy a new MPEG4 HD DVR at that time. Directv will slowly change over from MPEG2 to MPEG4 in the next several years. They have begun their changeover at this time. New HD programming will be on MPEG4 format (only) but MPEG2 format will continue as well. Bottom line, buy the HD DVR unit now.