External firewire 800 HD fast enough to work off??

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  • Reply 21 of 26
    jeffdmjeffdm Posts: 12,954member
    Quote:
    Originally Posted by paprochy


    Ah, never mind. I meant DVCPRO HD. different format.



    That makes sense now. DVCPRO HD is 4x higher bitrate, 100 Mbps, so that explains your 15 minute record time.
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  • Reply 22 of 26
    Quote:
    Originally Posted by JeffDM


    That makes sense now. DVCPRO HD is 4x higher bitrate, 100 Mbps, so that explains your 15 minute record time.



    Yep that clears it up. By the way, is HDV comparable in quality to DVCPRO HD? I've never used an HDV camera (though I had the opportunity to use a DVCPRO HD cam for a day) and I am curious about how it stacks up against dvcpro.
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  • Reply 23 of 26
    Quote:
    Originally Posted by addabox


    Up-side is that eSATA is even faster than firewire 800, scales to RAID better, is quickly becoming common, and may well spell doom for firewire 800 peripherals (so you're not buying into obsolescence).



    FW800 is on the way out. It will still be around for a few years, but it seems as though the cable set-top box industry is poised to revitalise firewire, albeit is a different direction than it has currently been delivered. Gone will be the 7-pin FW800. In will be Firewire over coax, and supposedly also the long-overdue FW3200, neither of which will be backward compatible with FW800.



    But before you make your decision, I just want to let you know that USB isn't great for connecting an HD. USB disks use "bulk mode" USB transfers, which are suboptimal for certain types of disk accessing. I don't think USB was ever really intended to be used to connect disks.
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  • Reply 24 of 26
    jeffdmjeffdm Posts: 12,954member
    Quote:
    Originally Posted by Splinemodel


    In will be Firewire over coax, and supposedly also the long-overdue FW3200, neither of which will be backward compatible with FW800.





    I thought Firewire was moving to Cat-5e/Cat-6, not coax.
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  • Reply 25 of 26
    Quote:
    Originally Posted by JeffDM


    I thought Firewire was moving to Cat-5e/Cat-6, not coax.



    Probably both. For FW3200, 4-pair Cat6 is pretty much necessary, but coax is for the moment an easier solution for set-top-boxes. Going coax obviously drops some of the niceties of FW, namely the ability to send data and interfacing simultaneously, but I'll take ANYTHING that will keep FW alive. . . Seriously. . . it's the only high-bandwidth multipoint-to-multipoint protocol around.
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  • Reply 26 of 26
    yeah, I certainly don't want to use usb for the HD. FW800 seems like the best bet for me, it's not too much more expensive than FW400 so I think it's worth it.
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