In an effort to possibly save some repetition in posts, and avoid confusion, this seems to be a question that pops up once a week or so.
No current DVD recorder, available in the American market at least, will record high definition content IN HIGH DEFINITION RESOLUTION. DVD recorders can only record in standard definition which is 480i. You cannot record in 480p, 720p, 1080i or 1080p.
You CAN record hi definition content from a sat box or STB, depending on the hookup, but at best it will be in 480i resolution. The recordings should still be very good, they just won't be in high definition. Your STB or source signal has to be able to transmit the hi-def content via component, S video or composite- -not all do. NOTE--If you have a Directv Hi def box (and this may apply to other STBs) you need to manually SET the Directv box to output at 480i OR YOU WILL NOT GET A SIGNAL WHEN YOU HOOK IT UP TO A DVD RECORDER! Until the HD format wars are resolved and we start seeing some HD-DVD players, HD-DVD recorders are still a ways off.
Even if you have a hi-def DVR like a Directivo, while the Directivo will store the high def signal to its hard drive, so you can watch in high definition from your Directivo or Dish hard drive, it is downconverted to 480i when outputted to a DVD recorder for archiving(and it does not even stay in the digital domain, as it has to be converted to analog, then back to digital).
The only current way to actually record in hi-def resolution, other than a hi-def STB hard drive, is via a D-VHS recorder.
AUDIO ADDENDUM: No current DVD recorders can record a Dolby Digital 5.1 or DTS multichannel digital signal either. Recorders have digital OUTPUTS (usually optical, some coaxial), but only record in Dolby Digital 2.0 or uncompressed PCM digital stereo audio. No standalone DVD recorders have digital audio inputs or allow recording of a 5.1 signal at this time. PCM audio is uncompressed,unlike DD, and is far superior than DD 2.0 for sound quality, especially for music. Beware the cheap DVD recorder brands, as many only have mono tuners and won't even record in stereo.
No current DVD recorder, available in the American market at least, will record high definition content IN HIGH DEFINITION RESOLUTION. DVD recorders can only record in standard definition which is 480i. You cannot record in 480p, 720p, 1080i or 1080p.
You CAN record hi definition content from a sat box or STB, depending on the hookup, but at best it will be in 480i resolution. The recordings should still be very good, they just won't be in high definition. Your STB or source signal has to be able to transmit the hi-def content via component, S video or composite- -not all do. NOTE--If you have a Directv Hi def box (and this may apply to other STBs) you need to manually SET the Directv box to output at 480i OR YOU WILL NOT GET A SIGNAL WHEN YOU HOOK IT UP TO A DVD RECORDER! Until the HD format wars are resolved and we start seeing some HD-DVD players, HD-DVD recorders are still a ways off.
Even if you have a hi-def DVR like a Directivo, while the Directivo will store the high def signal to its hard drive, so you can watch in high definition from your Directivo or Dish hard drive, it is downconverted to 480i when outputted to a DVD recorder for archiving(and it does not even stay in the digital domain, as it has to be converted to analog, then back to digital).
The only current way to actually record in hi-def resolution, other than a hi-def STB hard drive, is via a D-VHS recorder.
AUDIO ADDENDUM: No current DVD recorders can record a Dolby Digital 5.1 or DTS multichannel digital signal either. Recorders have digital OUTPUTS (usually optical, some coaxial), but only record in Dolby Digital 2.0 or uncompressed PCM digital stereo audio. No standalone DVD recorders have digital audio inputs or allow recording of a 5.1 signal at this time. PCM audio is uncompressed,unlike DD, and is far superior than DD 2.0 for sound quality, especially for music. Beware the cheap DVD recorder brands, as many only have mono tuners and won't even record in stereo.