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After created the noise profile (selecting a range, create noise profile, save noise profile) you are able to load the wav to denoise (or keep the actual one). There you have to load a noise profile first (noise profile/load), or keep the noise profile you created from that audio file, then you are able to remove the noise of it. You have to select first a range of the audio data that should be denoised before the menu option will be activated.

DC offset occurs when the average/mean of the signal is a value other than 0 which means on average DC current flows through a circuit and which means the signal will clip earlier on one side (top or bottom) and your maximum signal strength before clipping occurs is smaller. To get rid of DC offset the average of the signal is subtracted form every sample of the signal.

Normalization is used to bring up the sound level on songs that were not recorded very loud. It is use full when making a compilation disc as the songs that you use may have been recorded at all different levels. But be aware that on some discs the volume was choosen to create a special effect, on these CDs normalization would destroy that effect.

EAC does not support all writers yet, so it is possible that EAC just do not work correctly with that drive. Further it would be possible that something in your system will break the stream to the writer, resulting in a buffer underrun. Make sure that there are no other applications are running while writing.
If could try to switch the sync data transfer on for the writer, you could find that option in the Windows Device Manager (System Properties), there select the writer and show up and edit the properties of that drive.

EAC does not support all writers yet. At the moment only MMC writer that are able to write CDs using CUE sheets (not in RAW mode). So if a write error occur, the drive is most probably not supported.

As the data track has to be written in a second session(!) it is not possible to reproduce the complete CD with ONE cuesheet. Therefore you should burn at first the audio tracks, close the session (and leave the disk open). Then you could write the data track. I suggest writing the data files individually instead of writing an data image.

It is done with the cue sheet, you (or EAC) can add TITLE and PERFORMER tags (enable it in EAC options). If you want to burn with EAC, you will also find some CD-Text options in EAC options and don’t forget to activate it in the Drive options. In the Layout Editor, you could also still change title and artists.

“On-the-fly” copies will never be supported in EAC. This tool is used for secure copies, and secure copies can’t be burned “on-the-fly” (OK, with the new burnproof feature it would be possible, but not recommended anyway).

This happen sometimes, when the writer starts loosing the ability to find the correct positions for writing and the actual gaps are not 100% on the correct positions. Usually this happens to Yamaha writers sooner or later. So try to lower the writing speed and try different CD-R media. But it is also possible that a writer is not able to write very short gaps, so make sure that in the CUE sheet each gap is bigger than at least 100 sectors (1 1/3 second).

Probably you use different pressings of some (or all of) the CDs you tested. If you get at least twice exactly the same offset, you could be pretty sure to have found the correct one (and only then!).