I have an old Panasonic DMR-E20 (not ES-20) set-top DVD recorder. It records to DVD-R at 1x (real-time). I've finally run out of my inventory of 1x and 2x DVD blanks. Does anyone still make reliable 1x~2x DVD-R media? I'm concerned about using faster-rated media in the Panasonic, remembering Pioneer's warning that their early-model PC DVD-R drives needed a firmware upgrade to handle faster media. I don't know if there is a firmware upgrade for the Panasonic. Does anyone know if the DMR-E20 has a maximum recommended media speed for DVD-R?