Questions on Disk Utility on Creating the cdr Files

[Badman2012]

Hi guys,
I am new at this forum, please advise me if this is not the correct section that I should post my doubts and questions.

I have several audio cds that i need to backup using Disk Utility as cdr files. I launched the iTune and iTune shows the correct song names and album title. However, when I launched the Disk Utility and I found out that DU doesn't recognise the cd. It shows something like "audio cd" as album title (I am not quite sure if this is the correct term that being displayed in DU, I just guessed, as I am using Traditional Chinese as my main language in Mac OS X). I tried go to File->New->Image. When I select the cd as the source of the cdr file, it displayed all the audio file as "audio file", instead of the exact name shown in iTune.

My questions here are:
1) Why does the DU has such situation where it doesn't recognise the cd, instead of most of the cds can be recognised once iTune recognise it?
2) If this is the situation, how can I update the cd info manually inside DU? I don't want the cdr file came out with all the "audio file" as the song titles.

Any useful opinion and suggestion are appreciated.

Thanks in advance.

 

[Bear]

iTunes takes information from the CD and queries a database via the internet. This information iTunes gets is usually but not always correct.

Disk Utility just deals with the information that is on the CD. And that's why it doesn't show the same information as iTunes.

 

[Badman2012]

iTunes takes information from the CD and queries a database via the internet. This information iTunes gets is usually but not always correct.

Disk Utility just deals with the information that is on the CD. And that's why it doesn't show the same information as iTunes.

Thanks for the generous comment.

Let me explain more.

I encounter many times where DU doesn't recognise the cds. However, after I manually edit the info in iTune, rejects the cd, then re-insert it again. Now DU shows the correct info. It seems like updating the iTune will as well update the DU. Worst come to worst, I update the cd info into Gracenote CDDB server and repeat the cd-reject sequences and it will work. But still there are 3 or 4 cds that fail.

I am actually confuse on this. Do you know why is this actually happen?


Thanks.