USB 2.0 Enclosure for DVD Burner

Discussion in 'Amateur Video Production' started by au198295, Jul 20, 2005.

  1. au198295

    au198295 Guest

    I recently purchased an NEC 3520A 16X DVD Dual Layer Burner for use
    with my laptop. I already had an empty external enclosure on hand so I
    went ahead and installed it. I am not certain as to the brand of the
    enclosure, it seems generic. The model number is ME-350U2F and it is a
    IDE to USB 2.0 / Firewire 5.25" enclosure. I use the USB 2.0
    connection, but I also have a firewire connection on my laptop (but no
    cable at the moment). It says Speeze and Rainbow Storage on the box
    but I've found a whole bunch of enclosures that seem to use this same
    model number. There is nothing on the box indicating the chipset used.
    Anyway, the DVD burner works fine, however, the fastest burn rates I
    am able to get with either DVD+R or DVD-R are between 4X and 6X. I
    don't know a whole lot about the upper limits of data transfer through
    USB 2.0 / Firewire for DVD burning purposes but I was wondering if
    there is an enclosure out there that would give faster results than
    this one. Any suggested enclosures would be appreciated.
    au198295, Jul 20, 2005
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  2. au198295

    Smarty Guest

    I spent a lot of time fooling with both the NEC 3520A and a Pioneer A08
    (both are 16X burners) in Firewire and USB2 enclosures using both fast Dell
    Pentium 4 and PowerMac dual processor G5s. I can tell you confidently that
    neither burner will burn anywhere close to their rated speeds using USB2.
    Despite USB2 bandwidth claims, USB2 is not capable of supporting the I/O
    rates needed to fully utilize these fast drives. My earlier, slower drives
    (8X) did not encounter this USB2 limit.

    Firewire external enclosures allow the drives (3520 and A08) to burn at
    about 10X reliably. I have found that 12X and 16X recordings work
    consistently only when IDE internal controllers are used, but others may
    find external Firewire chipsets which work better than the Oxford 911 sets I
    have here for Firewire.

    My results have been reported by others in Internet newsgroups and forums so
    I don't believe my experiences are particularly unusual.

    Hope this helps.

    Smarty, Jul 21, 2005
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  3. au198295

    David Chien Guest

    Plextor 716a inside a ME-320UF usb2.0/FW combo enclosure from
    burns full speed over Firmware w/o any problems to 16x discs. I've yet
    to test with the latest firmware in the Plextor that speeds up burns on
    everything, so we'll see if it'll do a full speed 16x burn w/o hiccups.
    Otherwise, with older Firmware, don't recall any problems burning or
    ripping or testing discs using Plextools.

    Keep in mind that fast burns = the system & HD will have to keep up. A
    laptop setup may not be fast enough to push that much data w/o hiccups,
    which means the burns will slow down due to burn-proof recovery pauses.

    test using CDSpeed and you can see how the system is performing during a
    David Chien, Jul 21, 2005
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