RE: [newbie] USB CDRW
I have a USB burner,, have yet to fire it up in linux, but I think I can get it going, particularly when I upgrade in a couple of months.. the burner has a 4mb cache to make buffer underruns less of a problem,, and the drive is really just a ide drive hooked up to a IDE to USB interface card. works great in windows, and I think I won't have to much trouble when mdk 8 is on the system, from what I have read anyway.. The USBdrive is fantastic in windows, and great because I can burn from my laptop, or any of my servers, just by plugging it in... great for backups... Frank Hauptle / / _ ---/ / (_)__ __ __ --/ /__/ / _ \/ // /\ \/ / -//_/_//_/\_,_/ /_/\_\ Gshop & Network Payment Solutions. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Gerry Sent: Monday, 5 March 2001 10:32 AM To: [EMAIL PROTECTED] Subject: Re: [newbie] USB CDRW > I am debating to get a usb CDRW or get the IDE interior drive. I have two > questions: > 1. How do I get my LM7.2 system to recognize the USB Burner > 2. Any advice on which is the better buy...interior or exterior? I don't think cd-writing on usb is a terribly good idea.. Could be wrong though :) > 3. What are the speeds 4x4x6...vs8x4x32, etc relative toI am > having trouble > understanding how to judge relative speedis a 4x4x6 fast enough ? The first number is write-speed (cd-r), the second is rewrite-speed (cd-rw), the third is read speed. 1x is the "normal" cd-speed, which is about 300 kps, or 74 min to burn 74 min of music/650 mb data. Mulitply the speed by those numbers. Ie. 4x4x6 means 1200 kps for both writing modes, which means about 18 min to burn a full cd. Reading would be at 1800 kps. Keep in mind that your system must be able to feed the writer with data at that speed (normally not a problem, but stranger things have happened), unless it has burn-proof technology (pause writing on buffer underruns). Gerry
Re: [newbie] USB CDRW
One more thing The *only* benefit to the USB CD-RW would be portability, and you would no doubt be paying a premium for that. If you don't plan on using the CD-RW drive on multiple computers, I wouldn't bother with the USB. On Mon, 5 Mar 2001, Ed Tharp wrote: > I have a USB cd writer, I have not been able to get working under any flavor > of linux (altho I must admit I have given up on most flavors other than L-M. > I have been using 7.2. I do get a lot of buffer errors, more when I run > seti-at-home. I Strongly would recommend an IDE or SCSI burner. > - Original Message - > From: "Dennis Myers" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Sunday, March 04, 2001 9:10 PM > Subject: Re: [newbie] USB CDRW > > > > On Sunday 04 March 2001 19:42, you wrote: > > > I am debating to get a usb CDRW or get the IDE interior drive. I have > two > > > questions: > > > 1. How do I get my LM7.2 system to recognize the USB Burner > > > 2. Any advice on which is the better buy...interior or exterior? > > > 3. What are the speeds 4x4x6...vs8x4x32, etc relative toI am > > > having trouble > > > understanding how to judge relative speedis a 4x4x6 fast enough ? > > > > > > That is all the q's that I have right now. Thanks for your help. > > > Kevin > > I don't know about the usb support on 7.2, your chances may be better on > the > > next release 8.0. With that said, from what I have seen and my setups I > went > > with two internals since I could get two for less than a usb or serial > > external at the time. Here is the thing, data transfer on usb is supposed > to > > be high speed, but a cdrw can only handle so fast a speed as the buffers > and > > read will allow. When a cdrw is designated a 4x4x6 for example: 4x write > and > > 4x rewrite and 6x read with the x standing for the speed = to 4 times > 150kbs > > or 600kbs of data transfer for a maximum. So you see the usb is capable of > > the data transfers of most any cdrw but it is the cdrw speed that governs > the > > process. The other factor to consider is the buffer mem of the cdrw the > > higher the number the less chance of getting a bad burn.due to what is > called > > buffer overrun. You now know everything that I know about cdrw's. Hope > this > > helped or at least did not hurt. If anyone out there sees an error in my > > discourse please jump in here and correct me. Good luck, > > -- > > Dennis M. registered linux user # 180842 > > > > > > >
Re: [newbie] USB CDRW
I have a USB cd writer, I have not been able to get working under any flavor of linux (altho I must admit I have given up on most flavors other than L-M. I have been using 7.2. I do get a lot of buffer errors, more when I run seti-at-home. I Strongly would recommend an IDE or SCSI burner. - Original Message - From: "Dennis Myers" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, March 04, 2001 9:10 PM Subject: Re: [newbie] USB CDRW > On Sunday 04 March 2001 19:42, you wrote: > > I am debating to get a usb CDRW or get the IDE interior drive. I have two > > questions: > > 1. How do I get my LM7.2 system to recognize the USB Burner > > 2. Any advice on which is the better buy...interior or exterior? > > 3. What are the speeds 4x4x6...vs8x4x32, etc relative toI am > > having trouble > > understanding how to judge relative speedis a 4x4x6 fast enough ? > > > > That is all the q's that I have right now. Thanks for your help. > > Kevin > I don't know about the usb support on 7.2, your chances may be better on the > next release 8.0. With that said, from what I have seen and my setups I went > with two internals since I could get two for less than a usb or serial > external at the time. Here is the thing, data transfer on usb is supposed to > be high speed, but a cdrw can only handle so fast a speed as the buffers and > read will allow. When a cdrw is designated a 4x4x6 for example: 4x write and > 4x rewrite and 6x read with the x standing for the speed = to 4 times 150kbs > or 600kbs of data transfer for a maximum. So you see the usb is capable of > the data transfers of most any cdrw but it is the cdrw speed that governs the > process. The other factor to consider is the buffer mem of the cdrw the > higher the number the less chance of getting a bad burn.due to what is called > buffer overrun. You now know everything that I know about cdrw's. Hope this > helped or at least did not hurt. If anyone out there sees an error in my > discourse please jump in here and correct me. Good luck, > -- > Dennis M. registered linux user # 180842 > >
Re: [newbie] USB CDRW
On Sunday 04 March 2001 19:42, you wrote: > I am debating to get a usb CDRW or get the IDE interior drive. I have two > questions: > 1. How do I get my LM7.2 system to recognize the USB Burner > 2. Any advice on which is the better buy...interior or exterior? > 3. What are the speeds 4x4x6...vs8x4x32, etc relative toI am > having trouble > understanding how to judge relative speedis a 4x4x6 fast enough ? > > That is all the q's that I have right now. Thanks for your help. > Kevin I don't know about the usb support on 7.2, your chances may be better on the next release 8.0. With that said, from what I have seen and my setups I went with two internals since I could get two for less than a usb or serial external at the time. Here is the thing, data transfer on usb is supposed to be high speed, but a cdrw can only handle so fast a speed as the buffers and read will allow. When a cdrw is designated a 4x4x6 for example: 4x write and 4x rewrite and 6x read with the x standing for the speed = to 4 times 150kbs or 600kbs of data transfer for a maximum. So you see the usb is capable of the data transfers of most any cdrw but it is the cdrw speed that governs the process. The other factor to consider is the buffer mem of the cdrw the higher the number the less chance of getting a bad burn.due to what is called buffer overrun. You now know everything that I know about cdrw's. Hope this helped or at least did not hurt. If anyone out there sees an error in my discourse please jump in here and correct me. Good luck, -- Dennis M. registered linux user # 180842
Re: [newbie] USB CDRW
> I am debating to get a usb CDRW or get the IDE interior drive. I have two > questions: > 1. How do I get my LM7.2 system to recognize the USB Burner > 2. Any advice on which is the better buy...interior or exterior? I don't think cd-writing on usb is a terribly good idea.. Could be wrong though :) > 3. What are the speeds 4x4x6...vs8x4x32, etc relative toI am > having trouble > understanding how to judge relative speedis a 4x4x6 fast enough ? The first number is write-speed (cd-r), the second is rewrite-speed (cd-rw), the third is read speed. 1x is the "normal" cd-speed, which is about 300 kps, or 74 min to burn 74 min of music/650 mb data. Mulitply the speed by those numbers. Ie. 4x4x6 means 1200 kps for both writing modes, which means about 18 min to burn a full cd. Reading would be at 1800 kps. Keep in mind that your system must be able to feed the writer with data at that speed (normally not a problem, but stranger things have happened), unless it has burn-proof technology (pause writing on buffer underruns). Gerry
