On Fri, 23 Jun 2000, Matthew W. Miller wrote:
> The seemingly counter-intuitive thing about using video-cassette recorders
> with console systems (not just the VCS, or even Atari systems in general)
> is that you may have an easier time using a cheap low-end recorder rather
> than a high-end or commercial one! The reason for this is that high-end
> recorders tend to both send, and expect, highly precise 60-Hz pulses of
> the signal, whereas low-end recorders tend to slack off on both ends. So
> you might very well have less trouble recording with an off-brand (sorry
> Chris) than a name-brand like Mitsubishi. I believe this was discussed by
> the Stella at 20 guys a while back -- check the archives.
Also, 3 scanlines of VSYNC is *not* enough. To be standard, at any rate. :P
If you add a few more sync pulses, it's better. I forget what the "official"
correct number is, (Glenn?) but it's higher. 3 is about the absolute minimum
that most TVs will sync to. Newer, fancier equipment does expect to get
a correct signal. Not an unreasonable expectation, but sometimes not good.
Anyone remember why can't you do calculations during VSYNC? I remember the
discussion (a couple years back), but I don't remember the details.
-Chris
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