Burn times USB 2.0 VS 1.1

[radikal]

Hey All

I have a laptop to begin with and was using a Sony External DRX800UL burner using firewire..
Recently had probs completing burns and used FUJI DVds which I never had probs before....

My problem was the burning buffers would go to 0 but the time kept going on burning program and never ended and burner kept going on and on.........

I used NERO and IMGBurn with same results.......

So I went and bought a NEC 3550A and put it in a NEXTAR-DX USB 2.0 enclosure.....

I only had reg USB1.1 on Laptop so I also bought a USB 2.0 card to put in slot of Laptop...

Now all works welll but I find it takes too long to burn.....

I usually burnt a 4.7G DVD on USB 1.1 in about 2 hrs ...

I burn at 8X

I also tried burning 16X and takes 1hr to complete?????

Now with my USB 2.0 I burn same speed but in 1 hr and a half.......

I was told with USB2.0 there should be a major difference in burn time....

So 15 mins difference between 8X and 16X???????

Can someone let me know maybe I do something wrong????

Is the 1/2 hour time difference normal between USB1.1 and 2.0?????

Pointers would be appreciated....

I run Windows XP SP2

Please help

Thx all

[mh2360]

Burn times for a full 4.7gb DVD should be as follows (and I may be wrong here, but no doubt someone will correct me)

1x = 2hours
2x = 1 hour
4x = 30 mins
8x = 15 mins
16x = ~8mins

USB has a limited bandwidth to share between connected devices, maybe some other USB device you have connected is creating a bottleneck somewhere...

[Barnabas]

1x = 1 hour
2x = 30 min
4x = 15 min
8x = 7 1/2 min

[radikal]

Burn times for a full 4.7gb DVD should be as follows (and I may be wrong here, but no doubt someone will correct me)

1x = 2hours
2x = 1 hour
4x = 30 mins
8x = 15 mins
16x = ~8mins

USB has a limited bandwidth to share between connected devices, maybe some other USB device you have connected is creating a bottleneck somewhere...

The only USB devices I have are an external HD but it is not connected and the NEC 3550A....
Plus that USB2.0 card ....I have nothing else running USB2.0 that I know of????

Maybe someone can direct me to some settings to verify to see if all is well and there is nothing running that shouldnt be??

Thx

[jagabo]

Barnabas's numbers are about right except there is some lead in time, lead out time, laser calibration time, etc. So add a minute or two to each.

USB 1.1's raw throughput is 12 Mb/s but it's real world throughput is about half that, 6 Mb/s. A 1x DVD burn requires about 10 Mb/s. So a USB 1.1 port can't even keep up with a 1x burn.

USB 2.0's raw throughput is 480 Mb/s. It's real world throughput is far less, typicically around 160 Mb/s. So in theory a USB 2.0 port could burn a DVD around 16x. Other factors, especialy in a laptop, could reduce that number even further.

[radikal]

1x = 1 hour
2x = 30 min
4x = 15 min
8x = 7 1/2 min

Ok now so why am I burning at 8X and takes 1 hr and a half??????

Anyone else ever encountered this prob???

Im sure its a stupid thing as a setting or something

Ive heard some people talk about putting burner as a slave and primary?????

I do have an internal CD only burner in Laptop ...can that create some resistance????

Where can I check in system to see if my settings ok?????

I have 16 gigs free HD space and 756 Ram

Can it be Firmware...if so can someone direct me to where I can update firmware on NEC3550A

Please help

Thx

[mh2360]

You could check the read speed using Nero CD-DVD speed, that would confirm a data transfer rate problem, a firmware update should be your last resort...

[jagabo]

Check your hard drive DMA settings. Dropping out of DMA to PIO happens often and causes massive hard drive slowdown.

Right click on My Computer, select Manage, go to the Device Manager tab, open up the IDE ATA/ATAPI Controllers section, Double click on Primary IDE channel (most likely hard drive location), go to the Advanced Settings tab, make sure Transfer Mode is "DMA if available" and the Current Transfer Mode a DMA mode.

[jman98]

jagabo is right, but this is a USB device and they don't have PIO/DMA settings.

Take a look at:
http://club.cdfreaks.com/showthread.php?t=197682
where someone had a similar problem. My best guess is that your new USB 2.0 card is not really working in 2.0 mode but 1.1 mode. You should do the test that post talks about as it might help you to determine if that is the case.

[jagabo]

jagabo is right, but this is a USB device and they don't have PIO/DMA settings.

I knew someone was going to say this. He's likely burning FROM A HARD DRIVE to the DVD burner. The burner won't go any faster than his hard drive can feed it.

[Barnabas]

jagabo's advice is good. If you are in PIO mode, burns will be s-l-o-w! I remember reading that after so many DMA failures, speeds permanently drop to PIO. There is a Micro$oft paper on it I read once. There is a way to fix it, but I involved more than just setting back to DMA mode.

[radikal]

jagabo is right, but this is a USB device and they don't have PIO/DMA settings.

I knew someone was going to say this. He's likely burning FROM A HARD DRIVE to the DVD burner. The burner won't go any faster than his hard drive can feed it.

Ok yes thats is true ...copying DVD from laptop HD to External NEC3550A enclosure USB2.0

Now if I were to copy a DVD directly from The NEC to the NEC itself it should be faster????
Using those USB2.0???

OK Now with alll your experience here with burning and all if I copy a DVd-R from my NEC enclosure to my NEc enclosure I should see this copied in how long?????

I will try that tonight

Keep input coming

Thx all

[jagabo]

Now if I were to copy a DVD directly from The NEC to the NEC itself it should be faster????
Using those USB2.0???

How do you propose to do that without copying the source DVD to your hard drive then burning from the hard drive to your DVD burner? You can't put two DVDs in your drive at once!

If your hard drive isn't in DMA mode you should fix that.

[radikal]

Now if I were to copy a DVD directly from The NEC to the NEC itself it should be faster????
Using those USB2.0???

How do you propose to do that without copying the source DVD to your hard drive then burning from the hard drive to your DVD burner? You can't put two DVDs in your drive at once!

If your hard drive isn't in DMA mode you should fix that.

Ya thats right it copies to temp folder and after writes on blank

I will check the USB speeds and DMA later tonight

Thx

[radikal]

OK I did run the DVD test here are the results of speed..

Does this look like USB2.0???

Burst Rate 15 mb/sec

[radikal]

jagabo is right, but this is a USB device and they don't have PIO/DMA settings.

I knew someone was going to say this. He's likely burning FROM A HARD DRIVE to the DVD burner. The burner won't go any faster than his hard drive can feed it.

Is there a way to make HD faster in transfer???

Settings?????

Thx

[jagabo]

OK I did run the DVD test here are the results of speed..

Does this look like USB2.0???

Burst Rate 15 mb/sec

The value that Nero CD/DVD Speed reports is megabytes per second. So that number sounds about right for a USB 2.0 port: 15 MB/sec is 120 Mb/sec.

Since you have Nero, it has a hard drive benchmark built in too. Start Nero Burning ROM, go to File -> Preferences -> Cache -> Test All Drive Speeds.

[radikal]

OK I did run the DVD test here are the results of speed..

Does this look like USB2.0???

Burst Rate 15 mb/sec

The value that Nero CD/DVD Speed reports is megabytes per second. So that number sounds about right for a USB 2.0 port: 15 MB/sec is 120 Mb/sec.

Since you have Nero, it has a hard drive benchmark built in too. Start Nero Burning ROM, go to File -> Preferences -> Cache -> Test All Drive Speeds.

The funny thing is I uninstalled NERO...

The other thing is Im burning right now with RecordNow and it say shows 190 minutes for DVD

When I say open IE the burn process moves quicker...lol

What can that mean????

[mh2360]

If you have a desktop PC at your disposal you should install the drive as an IDE device just to check that its OK. If you can, try another enclosure just to rule that out...

[[_chef_]]

Burning DVD via usb1.1 is useless.

Even burning CDs that way is too slow when burning faster than 4x!!