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EZQuest 48X12X48X Firewire Problems


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To date, I have not been able to to use 48X media and get a successful backup with my Mac G4/400, Ezquest 48X12X48 CDRW (Lite-on LTR 48125W) firewire drive , Retrospect 5.0.238 and driver update 3.1. I have tried Imation and Verbatim brand disks but get ERROR 206, Bad Media either during the write or the verify. I did get 1 good backup using 32X media. The drive is listed as compatible in the Retrospect hardware database.

 

 

 

Does the rated speed of the media have any effect on the actual backup speed?

 

 

 

During Backup each disk takes about 5 minutes to burn.

 

 

 

Has anyone had any luck with different brands of 48X media?

 

 

 

Is this a hardware or software problem?

 

 

 

Am I doing something wrong?

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In reply to:

Does the rated speed of the media have any effect on the actual backup speed?


It can - make sure you're using media rated for your drive. The device is High Speed" CD-RW rated and Dantz recommends that high-speed rated CD-RW be used if using CD-RW discs.

 

 

 

In reply to:

During Backup each disk takes about 5 minutes to burn.


Retrospect loads it's own drivers to write to any supported CD-R drive. These drivers are written to work as efficiently and reliably as possible with the drive. There is no way to adjust the write speed, short of turning compression on or off.

 

 

 

Note that Retrospect writes in packet mode and will write data at the highest speed possible for your device. In some cases the firmware of a device will prevent Retrospect from writing data (in packet mode) at the normal designated write speed. This is true for the Panasonic CW-7503, Panasonic CW-7586, QPS Que! Fire 16x10x40 (TEAC) and a few other drives.

 

 

 

If you are having slow write speeds, it could be related to any of the following: client speed, network slowdowns, speed of the host, device communication, device firmware limitation or device problems. With a little troubleshooting you should be able to isolate the problem.

 

 

 

In reply to:

Is this a hardware or software problem?


The drive is supported, but there are other factors that could interfere. The following is from the Knowledgebasecolor=blue> and applies to Firewire and USB troubleshooting:

 

 

 

Check to make sure you have the latest USB or FireWire firmware update for

 

your computer. Apple often releases firmware updates that may help to

 

resolve USB or FireWire issues. Search the Apple Software Updates Web site

 

for relevant updates.

 

 

 

Retrospect lists the current firmware of the drive that you are using in the

 

version column of the Device Status window (accessible from Configure ->

 

Devices). Check with the drive manufacturer for any USB, FireWire or

 

firmware updates. If there is a known problem with a firmware version, this

 

will be listed on the Dantz website.

 

 

 

Try a new piece of media to see if the problem is related to a faulty or

 

damaged medium.

 

 

 

If applicable, try using a different brand of media. Often drives are picky

 

regarding the brand of media. Follow the manufacturer's recommended list of

 

brands.

 

 

 

If you are using a tape drive, clean the heads with a cleaning cartridge.

 

 

 

Isolate the device. Another device on the chain may be interfering with the

 

backup device's communication. If your backup device is connected to your

 

computer through a hub or another FireWire/USB device, unplug it and connect

 

it directly to a port on the computer. If it is already connected directly

 

to the computer, try changing ports. If the problem persists, do not

 

reconnect the other devices, and continue down the checklist.

 

 

 

You may have a bad cable. Replace the cable that connects the device to the

 

computer.

 

 

 

Update or reinstall the FireWire adapter drivers and/or firmware. Corrupt

 

drivers can cause issues that may not be otherwise detectable. Check the

 

manufacturer's or vendor's website for updated drivers.

 

 

 

Completely uninstall any other third-party backup software that may be on

 

your machine, including any drivers that software may have loaded for the

 

device.

 

 

 

The system board or FireWire/USB adapter in the computer may be having a

 

problem. Install Retrospect on another computer, if available, and try the

 

device there as the only device.

 

 

 

The device itself may be defective. If you have implemented all of the

 

preceding steps and get failures on new media after changing media, cables,

 

software, firmware and computers, then the backup device, being the only

 

factor that has not changed, is the the last variable. Contact your drive

 

vendor for further diagnostics, tests, or to inquire about repair or

 

replacement.

 

 

 

 

 

In reply to:

Am I doing something wrong?


Most likely not.

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