How does dvd ripping from an external USB 2.0 enclosure affect rip speed? - Club CDFreaks

mshan242700 · 29-01-2007

Just wondering if / how putting a fast dvd ripping drive into an external usb 2.0 enclosure affect rip speeds? Any difference with firewire?

Enclosure I am looking at is:
http://www.newegg.com/product/produc...82E16817186103

Some Random Guy · 29-01-2007

Not sure about firewire, but I have a BenQ DW1650 in a USB 2.0 enclosure. It goes to the maximum speed (16x for single layer recordable media at least) when ripping and produces the same smooth transfer rate curve that you get on an internal drive.

*CDan* · 29-01-2007

Firewire will be a tad faster and smoother, either should be adequate for video ripping. Be aware that ripping generates a bit of heat, so you want a case with good cooling. (or just leave the top off)

mshan242700 · 29-01-2007

Performance wise, there is no speed hit from the external usb 2.0 interface, vs. an internal connection with a regular ide cable?

mshan242700 · 29-01-2007

EDIT: above is supposed to read "is there no speed hit..."

*CDan* · 29-01-2007

USB2 is slower than firewire in sustained transfers. That said, either should (in theory) exceed the 16x data rate. Needless to say, YMMV. There are many poor USB2 controllers around that struggle to make it to 8x speeds. But unless you have a burner that's modded for removing rip locks, you'll likely not see any issues. Most drives rip video at 8x or 12x. Some will hit 16x on single layer only.

The other common issue with USB is that it does not provide a sustained transfer, as USB is a one-way connection. Results in a lot of little blips and burps in the data stream that can trip the burner to slow down. Firefire does not suffer from that. But again, odds are fair that USB will be fine.

My advice is always to get a dual-link case that allows you to go either way.

mshan242700 · 30-01-2007

Which chipsets do you recommend? (performance and compatability)

clintb · 30-01-2007

Quote:

Originally Posted by mshan242700

Which chipsets do you recommend? (performance and compatability)

Totally dependent on the drive.

Good chips:
Oxford 911+ (Firewire)
Prolific 3507 (Firewire & USB 2.0)
Cypress AT2+ (USB 2.0)
NEC (USB 2.0)

**mciahel** · 30-01-2007

Hi,

Quote:

Originally Posted by Some Random Guy

Not sure about firewire, but I have a BenQ DW1650 in a USB 2.0 enclosure. It goes to the maximum speed (16x for single layer recordable media at least) when ripping and produces the same smooth transfer rate curve that you get on an internal drive.

What chipset is this enclosure equipped with?

Michael

mshan242700 · 31-01-2007

I believe the chipset in the enclosure linked is NEC.

29-01-2007	#1 (permalink)
mshan242700 CD Freaks Member Join Date: Jan 2006 Posts: 123	How does dvd ripping from an external USB 2.0 enclosure affect rip speed? <a href='http://adstats.cdfreaks.com/www/delivery/ck.php?n=a13febf7&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='http://adstats.cdfreaks.com/www/delivery/avw.php?zoneid=30&cb=INSERT_RANDOM_NUMBER_HERE&n=a13febf7' border='0' alt='' /></a> Just wondering if / how putting a fast dvd ripping drive into an external usb 2.0 enclosure affect rip speeds? Any difference with firewire? Enclosure I am looking at is: http://www.newegg.com/product/produc...82E16817186103

29-01-2007	#2 (permalink)
Some Random Guy CD Freaks Senior Member Join Date: Oct 2006 Location: Ohio Posts: 400	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? Not sure about firewire, but I have a BenQ DW1650 in a USB 2.0 enclosure. It goes to the maximum speed (16x for single layer recordable media at least) when ripping and produces the same smooth transfer rate curve that you get on an internal drive.

29-01-2007	#3 (permalink)
CDan CDFreaks Resident Join Date: Mar 2005 Location: USA Posts: 2,634	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? Firewire will be a tad faster and smoother, either should be adequate for video ripping. Be aware that ripping generates a bit of heat, so you want a case with good cooling. (or just leave the top off)

29-01-2007	#4 (permalink)
mshan242700 CD Freaks Member Join Date: Jan 2006 Posts: 123	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? Performance wise, there is no speed hit from the external usb 2.0 interface, vs. an internal connection with a regular ide cable?

29-01-2007	#5 (permalink)
mshan242700 CD Freaks Member Join Date: Jan 2006 Posts: 123	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? EDIT: above is supposed to read "is there no speed hit..."

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29-01-2007	#6 (permalink)
CDan CDFreaks Resident Join Date: Mar 2005 Location: USA Posts: 2,634	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? USB2 is slower than firewire in sustained transfers. That said, either should (in theory) exceed the 16x data rate. Needless to say, YMMV. There are many poor USB2 controllers around that struggle to make it to 8x speeds. But unless you have a burner that's modded for removing rip locks, you'll likely not see any issues. Most drives rip video at 8x or 12x. Some will hit 16x on single layer only. The other common issue with USB is that it does not provide a sustained transfer, as USB is a one-way connection. Results in a lot of little blips and burps in the data stream that can trip the burner to slow down. Firefire does not suffer from that. But again, odds are fair that USB will be fine. My advice is always to get a dual-link case that allows you to go either way.

30-01-2007	#7 (permalink)
mshan242700 CD Freaks Member Join Date: Jan 2006 Posts: 123	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? Which chipsets do you recommend? (performance and compatability)

31-01-2007	#10 (permalink)
mshan242700 CD Freaks Member Join Date: Jan 2006 Posts: 123	Re: How does dvd ripping from an external USB 2.0 enclosure affect rip speed? I believe the chipset in the enclosure linked is NEC.

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