Why is exact audio copy so slow

Joined Feb 9, Posts Likes Umm, mine go sub 1x speed for some copy protected CDs. Otherwise, its more in the region of 10x. Joined Aug 7, Posts Likes I always thought this was a byproduct of copyprotected CDs o. O Then again, what is the "normal" speed you get for normal CDs in secure mode? Joined Dec 3, Posts 2, Likes It may be helpful to check which EAC settings others use with that drive.

The A still is relatively new so the automatically chosen ones may not be optimal. Help Head-Fier. Joined Jul 31, Posts 76 Likes 0. EAC is slow because it takes care to rip correctly, I have ripped 20 tracks cds about hours of music in about 10 minutes because they don't have any scratches or dust.

It is worth to clean your cd before ripping, I really have seen differences in speed. Something like going at.

Using these secure modes, every sector read will be doublechecked and reread or corrected if necessary. On many drives the extraction is not error free, thus these routines will make sure the track is read correctly.

The data transmission itself is purely digital and also the data stored on the CD. But the Red Book standard standard for audio CDs is very weak and only little error correction will be performed in the drive. Unless otherwise indicated on a new release, for updates just extract the new exe file in your EAC dir. In that folder there is an entry called Uninstall. Click on this entry and follow the dialogs that are shown on the screen, confirm that you really want to uninstall EAC from your computer.

Follow the dialogs that are shown on the screen, confirm that you really want to uninstall EAC from your computer. A ZIP file contains compressed files. This is easier for the transmission of several files. No, your soundcard has nothing to do with ripping or burning cds. This means that one action is performed while or intermixed with another action. When playing an audio CD in a standalone player, often the time display will show up negative values before actually starting a track.

This gap is usually used for seperate two different tracks. If jumping to a specific track, it will start with the actual music, only when running into a track the gap occurs. Then you need a programm to decompress these compressed files a AC3 decompressor or a DTS decompressor. Sorry, no Linux nor MAC version is planned at all. Make sure you start EAC from an admin account, as some functions need a to access low level system routines, which are not accessable from user accounts.

It should be disabled by default. Enable it. No need to reboot, when quitting MMC, no need to save. What this does is allow any local software to lock the drive for exclusive use. With this, EAC works seamlessly. It also makes it possible to use a CD-Writer as restricted user with whatever software you choose. For this EAC make use of several interfaces which do the low level work. You can choose the interface by your own in the EAC options depending which interfaces are installed in your computer.

In all other Windows it needs to be installed, but in these OS the installer tests if any Adaptec hardware is in your computer. Nevertheless you can try to install it, download for Windows 95 only and a ll other windows versions. It is freely available from here. Nevertheless, this will only work if you are logged in with admin rights. If you encounter problems, it is strongly recommended to download ASAPI and to change the interface to that.

It is possible also to extract copy protected tracks, as the copy protection is only a flag on the CD, and all CD-ROM drives will ignore it on reading. Some month ago there are now also real copy protections for audio CDs, but this information is not given in the table.

If there is such a CD, it will show garbage, not extract tracks or probably insert errors in the extraction. Data has a third layer of error correction which need more storage space.

So sector size is bytes for data and bytes for audio. This is why the files are too big to write them as data files, but it should be possible to write them as audio CD instead.

Sometimes EAC will autodetect a wrong read command. Try to manually select a read command. Test it with burst mode. If both also fails, make sure that your drive is capable of extracting digital audio at all. In this case it is possible that only silence is returned. So try at first to install it on your computer. Second, it has also happened that an illegal audio codec let EAC crash on enumerating all audio codecs. In that case try to disable not deinstall each codec and try again, you could enable the codecs then again piece for piece to find out which one causes the problem.

Nimo Codec Pack. In this case it is always a good idea to delete the EAC entry in the registry. So start regedit. This mode is the oldest read mode in EAC, it exists from version 0. It will read every sector twice, but in very small blocks. This will slow down extraction, no drive features are used. If the drive does caching the option below should be activated, but this could create problems on some drives. This mode is stressing the drive very much and should not be used, if one of the other secure modes works ok.

On some drives this will take several seconds and should not be used in that case. One CRC code is unique for a set of data. So by comparing the CRC values you could be quite sure that both reads resulted in the same file.

If both fail, the output is probably not correct anymore. Most drives are not able to report if audio reads failed or not, so each block had to be read twice and be compared to make sure that everything is fine.

But there is still a problem, as some drives do not report these errors correctly, so you should test it thoroughly before trusting the results.

Standalone CD players perform oversampling and some more error correction. That means that the player will hide the error in a way that it is not audible to the common listener. These additional techniques are not implemented in the CD-ROM drives, thus the uncorrected data is given back.

Have a look on the CD if it is dirty. Try to clean it from the inner ring to the outer bound , perhaps it works better then.

If not, try to lower speed or even to extract in burst mode, sometimes this will give better results but no error reporting though. I wanted to ask if you got the Secure mode sorted out?

There is a very good guide for setting up EAC somewhere. On MaximumPC website i think. Looks like the MaximumPC link is now dead, but this one is very very similar.

You must log in or register to reply here. Similar threads. Question How to rip a CD burned with the wrong track timings? Replies 12 Views Nov 22, RBZ Listening fatigue. Replies Views 7K. Friday at AM FootHealer. Replies 17 Views 8K. May 25, golden phoenix. Replies Views 54K. Oct 3, Khankat. Poll Anyone else with a Tesla? Some month ago there are now also real copy protections for audio CDs, but this information is not given in the table. If there is such a CD, it will show garbage, not extract tracks or probably insert errors in the extraction.

Data has a third layer of error correction which need more storage space. So sector size is bytes for data and bytes for audio. This is why the files are too big to write them as data files, but it should be possible to write them as audio CD instead.

Sometimes EAC will autodetect a wrong read command. Try to manually select a read command. Test it with burst mode. If both also fails, make sure that your drive is capable of extracting digital audio at all.

In this case it is possible that only silence is returned. So try at first to install it on your computer. Second, it has also happened that an illegal audio codec let EAC crash on enumerating all audio codecs. In that case try to disable not deinstall each codec and try again, you could enable the codecs then again piece for piece to find out which one causes the problem.

Nimo Codec Pack. In this case it is always a good idea to delete the EAC entry in the registry. So start regedit. This mode is the oldest read mode in EAC, it exists from version 0. It will read every sector twice, but in very small blocks. This will slow down extraction, no drive features are used. If the drive does caching the option below should be activated, but this could create problems on some drives.

This mode is stressing the drive very much and should not be used, if one of the other secure modes works ok. On some drives this will take several seconds and should not be used in that case.

One CRC code is unique for a set of data. So by comparing the CRC values you could be quite sure that both reads resulted in the same file. If both fail, the output is probably not correct anymore. Most drives are not able to report if audio reads failed or not, so each block had to be read twice and be compared to make sure that everything is fine. But there is still a problem, as some drives do not report these errors correctly, so you should test it thoroughly before trusting the results.

Standalone CD players perform oversampling and some more error correction. That means that the player will hide the error in a way that it is not audible to the common listener.

These additional techniques are not implemented in the CD-ROM drives, thus the uncorrected data is given back. Have a look on the CD if it is dirty. Try to clean it from the inner ring to the outer bound , perhaps it works better then.