USB 2.0 instead of 1394? Houston we seem to have problem!

M

mthornton

Member
USB 2.0 instead of 1394? Houston we seem to have problem!


Dear Jan,

Why is this drive USB instead of 1394, will it have 1394 firewire?

Last year NAB I heard that p2 was not compatible with Apple Laptops yet, now now no firewire support on the drive?

WHY?


https://eww.pavc.panasonic.co.jp/pro-av/sales_o/p2/p2drive/index.html

High-Speed Data Transfer via USB 2.0
The USB 2.0 interface lets you transfer data at high speeds. You can edit directly onto P2 card with nonlinear editing software. You also get blazing fast results when uploading files to a server or copying onto a hard drive.

mthornton
 
My 18 month old 12" Powerbook is only USB 1.1
Of course it doesn't meet the Final Cut Pro HD specs to do HD, either.
I may just need a different computer, that's all.
 
My new PBG4/1.67 has USB 2 interface and those without can use a Cardbus compatible USB 2 adapter. You only need that, however, if you want to use panny's P2drive. If your PB has a cardbus slot, that's all you need.
And have a look to www.flip4mac.com , they offer a plugin to import MXL data files, as can be found on a P2 card, right into your PB. So where's the problem? Can't see any.
 
thisiswells said:
My 18 month old 12" Powerbook is only USB 1.1
Click to expand...

Are you sure? I got my 12" Powerbook last June and it has USB 1.1 and 2.0 sharing the same port(s). One port is 1.1 and the other is 1.1 and 2.0.
 
I'm the opposite way. I vastly prefer firewire to USB. It's not as theoretically fast but in practice it seems (to me) to be much more reliable and quick.
 
Um... the Panasonic website clearly says IEEE 1394 Interface. What ya'll talking about? Why would you prefer USB to Firewire? Who Cares as long as it works?
 
magicdavek said:
Are you sure? I got my 12" Powerbook last June and it has USB 1.1 and 2.0 sharing the same port(s). One port is 1.1 and the other is 1.1 and 2.0.
Click to expand...

After writing that I realised my laptop is closer to two years old.
It's the 867mhz 12" Powerbook. Yeah--showing its' age now.

The first batch of the 12" P-Book didn't have USB 2.0 or a Mini-DVI connector.
Those were added later on in the next round that came out in Fall 2003, starting
with the 1Ghz 12" computer. For most things, this one works great still.

brian wells
 
No way

USB 1 , 1.1 , 2.0 just don't cut the mustard (I do not get that, do you?)

even the oldest firewire is superior to any USB

Not sure how it works on the mac(prob the same) USB was designed to be cheap and used with multiple devices sharing the bus

while firewire(1394, iLink) was made to be a high speed connection outside the box

the reason that there is still usb is because it is cheaper and more profitable, firewire is more stable and redundant,

from the beginning usb was made to be a cheap multi use connection for devices(key word cheap)

firewire was made to be a fast stable connection(price hi lo does not matter)

now usb 2.0 could have been nice, but because it is an extension it needs to be backwords compatable,

you can make usb 5.0 with 1000MB speed on the hvx and a card to go with it but if you have a usb 1.1 device hooked up in the chain it can spell trouble for your card and hvx

there will be something new to replace both very soon as a universal standard, I'd guess a serial ata based connection(used for newer hard drives)
 
The main difference between FireWire and USB, and the reason why FireWire is superior for video, is that firewire can guarantee bandwidth, while USB cannot. FireWire allows devices to make a claim for an amount of bandwidth, and either refuses them, or guarantees a data rate until the device relinquishes it. USB devices constantly contend for bandwidth, and the data rates sometimes slow down due to this contention (much like, say, on an ethernet). So, for anything real-time (such as capture, etc.) you want FireWire. For data transfers between hard drives, etc., or for non-critical postproduction stages where a stutter here or there doesn't matter, USB is fine.

-Barry
 
Firewire is superior to USB in everyway...

USB 2.0 has a sustained Data Rate of 12 MB/sec... and a burst mode of 48 MB/sec...

Firewire 400 has a sustained Data Rate of 34 MB/sec.. and a burst mode of 38 MB/sec..

Firewire 800 has double that with a sustained rate of 76 MB/sec... burst mode I am not sure with FW800..

from my own experience... 400 is closer to about 20-24 MB/sec.... and 800 is close to 70 MB/sec...


Firewire also doesn't depend on the CPU at all..

I am not a USB fan... only for input devices and what not..

of course.. all of these numbers are sujective too... don't take them too literally.. more as a guide
 
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