Will enclosure on 2500A affect quality? - Club CDFreaks

jason_godly · 27-08-2004

Same as title, just wanna know if putting a USB 2.0 enclosure on 2500A will affect its burning quality? I'm getting constant buffer level. Thanks.

marcog · 27-08-2004

A Frewire enclosure would be much better - it's faster, way less CPU intensive and better overall.

therockscott · 27-08-2004

I have mine in a usb 2.0 enclosure and it works. i wish i had firwire though.

marcog · 27-08-2004

Firewire is not that much more expensive either, considering the difference in performance.

*beach-hobo* · 27-08-2004

Quote:

Originally Posted by marcog

Firewire is not that much more expensive either, considering the difference in performance.

As long as you have the "RIGHT" ChipSet(s) on the BridgeBoard, you should have no problem with the 2500A in an external enclosure.

If you have to purchase an exclosure, I would recommend that you get a COMBO unit that supports both 1394 & USB2. You will be very happy you did it when you find an application that will not work via Firewire. It's just swap to USB2 and continue on...

marcog · 27-08-2004

That's exactly what I went for - a combo enclosure.

And the right Firewire chipset seems to be the Oxford 911 chipset, not sure about USB. Apparently USB is limited to about 8x, but again it depends on the chipset - so I wouldn't take a chance with USB.

*beach-hobo* · 27-08-2004

Quote:

Originally Posted by marcog

That's exactly what I went for - a combo enclosure.

And the right Firewire chipset seems to be the Oxford 911 chipset, not sure about USB. Apparently USB is limited to about 8x, but again it depends on the chipset - so I wouldn't take a chance with USB.

From my testing over the past few months you are correct that the high water mark for USB2 is 8X. The only USB2 ChipSet that would not run that fast but was about 6X was the "CYPRESS CHIPSET".

Breakdaddy · 28-08-2004

Quote:

Originally Posted by marcog

A Frewire enclosure would be much better - it's faster, way less CPU intensive and better overall.

Aside from the cpu usage claim (which I cannot repudiate), USB2.0, to the best of my knowledge, is 480 mbit throughput while firewire is 400 mbit throughput. This would indicate that firewire is significantly slower. Please prove me wrong if I am remiss in these analyses.

*beach-hobo* · 28-08-2004

Quote:

Originally Posted by Breakdaddy

Aside from the cpu usage claim (which I cannot repudiate), USB2.0, to the best of my knowledge, is 480 mbit throughput while firewire is 400 mbit throughput. This would indicate that firewire is significantly slower. Please prove me wrong if I am remiss in these analyses.

Simple TEST you can do yourself. Use Nero CD-DVD Speed and do a transfer rate test via USB2 (13MB/s = 10X). Same test via 1394a (22MB/s = 16X).

Try it !!!!!

*pinto2* · 28-08-2004

Quote:

Originally Posted by Breakdaddy

Aside from the cpu usage claim (which I cannot repudiate), USB2.0, to the best of my knowledge, is 480 mbit throughput while firewire is 400 mbit throughput. This would indicate that firewire is significantly slower. Please prove me wrong if I am remiss in these analyses.

Welcome Breakdaddy

Yeah, theoretical figures is one thing... "real world" something complete different.

Woul be nice with [CDRW/DVDRW/HDD] USB-2 enclosures handling 40+MB tranfer burst.
From what I seen on this board, not many can handle/burn good at 8X (DVDRW) eq. ~11.5MB...

BTW, I vote for combo Firewire/USB-2

and Firewire-II (800) for those with chipset/PC-cards supporting this.

jason_godly · 28-08-2004

Thanks for the replies. I burn most of my DVD+R's at 4X, so speed isn't that much of an importance for me. I just wanna know if the resulting disc quality would be any different than an IDE mounted 2500. Thanks.

*raygay* · 28-08-2004

actually some users have reported Prolific chipset for firewire casing is the best. my oxford 911 onlymax out at 6x

marcog · 28-08-2004

Quote:

Originally Posted by pinto2

and Firewire-II (800) for those with chipset/PC-cards supporting this.

1394b enclosures are uneccisserily expensive for DVD burning at the moment - they cost over $200 compared to a good 1394a enclosure at around $40-$50. If you can get a good 1394a enclosure, it should work at 16x.

jason_godly · 28-08-2004

From my readings, I found RICHOJPNR01 to be working pretty well with NEC 2500A, but from the two scans I got here, they definitely don't look that good to me. So I started to suspect that it's the USB 2.0 enclosure that makes bad burning quality. Can anyone justify this?

Burning: NEC2500A (herrie's 1.07V2B5DL) @ 4X
Scanning: BTC 1008 (0059) @ 4X
Software: CDSpeed 3.21
Buffer level stayed constantly between 92-97%

*beach-hobo* · 28-08-2004

Quote:

Originally Posted by raygay

actually some users have reported Prolific chipset for firewire casing is the best. my oxford 911 onlymax out at 6x

Hi raygay,
You are 100% correct. With the Prolific PL-3507 ChipSet on my case's BridgeBoard, my 1394a transfer rate is 22MB/s (and does support 16x) and the USB2 rate is 13MB/s (only supports up to 10X).

This can be proven by running Nero CD/DVD Speed Testing...

I do have a problem with FireWire in that the drive drops ready, appears to be still writing and Nero Express keeps running but there is no burn goiing on.

Works with no problems in USB2 mode...

27-08-2004	#1 (permalink)
jason_godly CD Freaks Member Join Date: Aug 2004 Posts: 107	Will enclosure on 2500A affect quality? <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> Same as title, just wanna know if putting a USB 2.0 enclosure on 2500A will affect its burning quality? I'm getting constant buffer level. Thanks. __________________ NEC 4570A @ 1.Z2 NEC 3500A @ 2.TG LiteOn 812S->832S --- RIP LiteOn 52246S @ 6S0F Plextor 1210A @ 1.10

27-08-2004	#2 (permalink)
marcog CD Freaks Member Join Date: Jul 2004 Location: South Africa Posts: 100	Re: Will enclosure on 2500A affect quality? A Frewire enclosure would be much better - it's faster, way less CPU intensive and better overall.

27-08-2004	#3 (permalink)
therockscott CD Freaks Member Join Date: May 2004 Posts: 162	Re: Will enclosure on 2500A affect quality? I have mine in a usb 2.0 enclosure and it works. i wish i had firwire though. __________________ Dell Inspiron 600m,512MB RAM, 60G Maxtor 80.0GB External NEC3520AW V1.UF (USB 2.0) Aopen1648 AAP/PRO Toshiba SD-M1612, hacked FW J808 (USB 2.0) Nero 7.0 WIN XP PRO SP2

27-08-2004	#4 (permalink)
marcog CD Freaks Member Join Date: Jul 2004 Location: South Africa Posts: 100	Re: Will enclosure on 2500A affect quality? Firewire is not that much more expensive either, considering the difference in performance.

27-08-2004	#6 (permalink)
marcog CD Freaks Member Join Date: Jul 2004 Location: South Africa Posts: 100	Re: Will enclosure on 2500A affect quality? That's exactly what I went for - a combo enclosure. And the right Firewire chipset seems to be the Oxford 911 chipset, not sure about USB. Apparently USB is limited to about 8x, but again it depends on the chipset - so I wouldn't take a chance with USB.

28-08-2004	#11 (permalink)
jason_godly CD Freaks Member Join Date: Aug 2004 Posts: 107	Re: Will enclosure on 2500A affect quality? Thanks for the replies. I burn most of my DVD+R's at 4X, so speed isn't that much of an importance for me. I just wanna know if the resulting disc quality would be any different than an IDE mounted 2500. Thanks. __________________ NEC 4570A @ 1.Z2 NEC 3500A @ 2.TG LiteOn 812S->832S --- RIP LiteOn 52246S @ 6S0F Plextor 1210A @ 1.10

28-08-2004	#12 (permalink)
raygay CDFreaks Resident Join Date: May 2004 Posts: 1,066	Re: Will enclosure on 2500A affect quality? actually some users have reported Prolific chipset for firewire casing is the best. my oxford 911 onlymax out at 6x

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