To DVD ot not To DVD DVD ot PVR 518

Agamemnon

snip

That applies to any data in any format.

You appear to imply you accept my point, though see (*) below.

There's an historical reason for this. DVD originally meant Digital Video Disk. It was only after this had been formulated it dawned on the groups involved that DVDs had applications for data storage, hence a rapid contrived name change which kept the initial acronym, to Digital Versatile Disk, with those used for video storage in the original format now known as DVD Video disks.

I buttume inertia, existing investment in the format & a desire to maintain perceived security of the video data are the reasons the DVD Video format wasn't itself changed to support more flexible storage.

(*) Okay, perhaps not then.

That's what existing PVRs do. If they wanted to be able to copy content to DVD Video disks they'd have to support transcoding at some point. This can only practicably be done at record time as otherwise the customer is faced with delays they'd consider unacceptable when preparing the video data for burning to DVD Video. Fortunately it can easily be done at record time as transcoding then needs only be done in real time, however to operate simply & consistently (a user requirement for consumer electronics) it would require the ability to transcode every input source. Since the PVR can process multiple sources concurrently, it would thus need multiple transcoders.

In case it isn't obvious & fwiw, if I designed such a device I'd want it to record both the original stream & the transcoded to the hard drive. One for playback & one for possible writing to DVD Video.

Your claim is only correct if your combined PVR-DVD Recorder does the required transcoding as a distinct step at some other time between source input & burning the data to DVD Video. This is doable, but would either require very expensive hardware or result in the copy process being done at about single speed. Neither is practical from a consumer pov.

Given your atbreastude, this will be my last attempt to explain your mistake-s.

-- Michael m r o z a t u k g a t e w a y d o t n e t