Having issues transferring p2 from using 15ft firewire

F

FilmBoy77

Veteran
for some reason my p2 footage wont transfer to my laptop pc using this new 15ft firewire cable i just bought. the computer recognizes the drives but when i try to drag the p2 content onto my hard drive it just stalls out and says "calculating estimated time of trasnfer, etc"

do i need a shorter cable or something??

i havent tried recording into DV Rack yet (havent installed the new version that came tiwh CS3 yet)
 
Panasonic's P2 drivers for the PC don't even have an option for Firewire, they only support USB. You can use Firewire with DV Rack / OnLocation, but you can't use it for offloading P2 cards.

As far as the interface and bus are concerned, USB has a higher peak transfer rate (480Mbps vs. 400Mbps), but in practice Firewire has higher sustained throughput and causes less CPU utilization. Of course none of this matters if you aren't given a choice....
 
The wording is that 1394 Device Mode transfers are "not guaranteed" under Windows, but USB transfers are guaranteed.

On Mac, 1394 Device Mode transfers are guaranteed, and USB transfers are "not guaranteed."

In both cases, using the 'not guaranteed' option may work, or it may not, or it might work for a little while and then stop working. No matter what, you're better off avoiding the not-guaranteed option and instead using the guaranteed option.
 
FilmBoy77 said:
oh really? well that's what i used on today's shoot. is there a reason why firewire wont work? i thought firewire was faster?
Click to expand...

See this:

Question: USB 2.0 is faster than FireWire...right?
Answer: No, actually FireWire is faster than USB 2.0.

Question: Hold on...USB 2.0 is a 480 Mbps interface and FireWire is a 400 Mbps interface, how can FireWire be faster?
Answer: Raw throughput rating numbers alone don't tell the whole story, as explained below.

The throughput numbers would lead you to believe that USB 2.0 provides better performance. But, differences in the architecture of the two interfaces have a huge impact on the actual sustained "real world" throughput. And for those seeking high-performance, sustained throughput is what it's all about (reading and writing files to an external hard drive for example).

Architecture - FireWire vs. USB 2.0

FireWire, built from the ground up for speed, uses a "Peer-to-Peer" architecture in which the peripherals are intelligent and can negotiate bus conflicts to determine which device can best control a data transfer


USB 2.0 uses a "Master-Slave" architecture in which the computer handles all arbitration functions and dictates data flow to, from and between the attached peripherals (adding additional system overhead and resulting in slower, less-efficient data flow control)

Performance Comparison - FireWire vs. USB 2.0
Read and write tests to the same IDE hard drive connected using FireWire and then USB 2.0 show:

Read Test:
5000 files (300 MB total) FireWire was 33% faster than USB 2.0
160 files (650MB total) FireWire was 70% faster than USB 2.0

Write Test:
5000 files (300 MB total) FireWire was 16% faster than USB 2.0
160 files (650MB total) FireWire was 48% faster than USB 2.0

FireWire - Still the Performance King!
As the performance comparison shown above confirms, FireWire remains the performance leader. And is the best choice for DV camcorders, digital audio and video devices, external hard drives, high-performance DVD burners and any other device that demands continuous high performance throughput.


Found here: http://www.cwol.com/firewire/firewire-vs-usb.htm
 
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