The benefits of using DVCam to master on are plainly obvious in the context of music production for TV work, the same as using any broadcast deck with split stereo recording.
The first I explained above, the importance of having separate audio channels to enable broadcasters to easily provide alternative language versions of programming. In 2 channel mode you can achieve the 48k, in 4 channel the 32k, allowing you to mix the natural sound/pics with the added music to give the editor an idea of how it should work and also to allow the music to be faded manually as seperate stereo tracks from the dialogue.
The second is the frame accuracy of timecode, when working with video-locked control timecode you can punch in and out of a recording with the effective accuracy of 1/25th of a second, which is far better than pasting in overdubs on an analogue machine when you're in a rush...even with an SMPTE stripe. Also, it's just how I'm used to doing it.
You said:
not that I know of any that accept DVCam as a post or delivery format, but that's by the by
which I found rather funny considering it has been the most popular format for shooting and editing for the past 10 years, therefore the ideal format for delivering music to an edit equipped with DVCam on, in addition to full quality CD, so that the EDL files generated with a programme edit will correspond with a DV tape number and timecode.
As oppposed to a CD which has different data specifications and would be difficult to pinpoint when rebuilding a programme online... ie you can't capture sound from a CD in the same way you capture video.
I have personally delivered DVCam masters to many broadcasters, not just music but programme edits too, and although they would undoubtedly prefer a DigiBeta especially nowadays, you would be surprised how many people digicut to DVCam and simply dub it to DigiBeta to save cash.
For me to hire a DigiBeta machine would cost me nearly £300 per day after all the tax and insurance - but I can hire DVCam decks for free.
Far from being some kind of obselete format, most news and documentary material is still shot on DVCam, and even the latest HD cameras give you the non HD option of DVCam recording, (the Sony Z1 for example).
My reasons for mastering onto DVCam are simple - it's cheap, I can achieve 4 track surround, (whether split over two or more seperate 48k recordings to be matched later in edit, or in 4 track simultaneous recording in, as you say, 32k), and it's a format I pretty much deal with daily.
Nowadays it's all about the HD, as I'm sure you would be aware, but even then a 48k export is the same quality - 48k is 48k, whether on DAT, or DVcam, or HD decks.
I accept what you're saying about 20 Hz to 14.5 kHz limitations, but for soundtrack work frequencies outside this range would in most cases be clipped in transmission anyway.
As for Beta SP - sure, it's an old format, so is 1/4 inch tape, but I still use it.
I like the way tape recording mangle dynamics from punchy drums, and it just sounds good to me, plus I like being able to jog/shuttle through tapes the old way, like a piece of vinyl, none of the crackly digital spikes you get with modern stuff when playing it at slower speeds, it's easier to edit sound with from the front panel.
The Roland TR808 used 80's technology, so did the AkaiS950, and the TB303, but they still can't be as accurately reproduced by computers as the real thing in terms of operational use and sounding like they used to.
I also master onto DVD, if it's easier, I have two Sony DVD recorders for archiving ideas and pissing about with noises with a view to sample them later.
Sorry if that's not quite Abbey Road in your eyes, but I make a good living out of the methods in my madness.
