Tag editing problem

[Gussy]

I´ve just bought a 24/96 flac as a download but I´ve noticed if I change any of the ID-tag values then the album disappears completely from the Kazoo library and obviously won´t play...

It plays fine as long as you don´t alter any ID values as they were downloaded. I´ve changed ID-tags a thousand times before (dbpoweramp) and never had any problems at all using minimserver....

Can anyone guess where I´m going wrong?

Many thanks,

Gussy

[simoncn]

Did you do a MinimServer rescan after changing the tags? If so, did this rescan produce any error messages in the MinimServer log?

[Gussy]

Yes, I scan after each change - please see attached log file - I think there are errors shown...

[simoncn]

(01-04-2017 16:28)Gussy Wrote:  Yes, I scan after each change - please see attached log file - I think there are errors shown...

I see an error that might be causing the issue:

Error: duplicate Vorbis comment block at offset 779 in file Haydn Piano Sonatas, Vol. 6/01.flac (length 111775035)

Is this one of the files that you changed?

I also see other problems:

Warning: unable to list files in content directory Music2
Warning: error scanning file 'F:\Music2': java.nio.file.NoSuchFileException: F:\Music2
MinimServer: exception while processing action request: java.lang.IndexOutOfBoundsException: Index: 44, Size: 44

I think the IndexOutOfBoundsException might be related to the problem with F:\Music2. Do you know why F:\Music2 can't be scanned?

[Gussy]

.......

[Gussy]

Sorry, i need to check something....

[Gussy]

Hi Simon - thanks very much for your help!

F:\Music2 is a folder on a USB hard disk which I sometimes attach to my laptop. At the moment it is unattached and so I should probably delete the address from minimservers properties...sorry!

But the album in question is not in this folder but the "music" folder - there are 26 other albums in this folder which play fine - including the problem album (as long as you don´t alter the ID tags!)

I´ve also copied the (unedited) album to my NAS which plays fine...but with horrible tags...

Once again, many thanks!

PS Yes the track you highlighted is one of the tracks I changed - I changed all of them!

[simoncn]

The IndexOutOfBoundsException problem with F:\Music2 is not related to the tag editing issue. I will look into fixing this and I will let you know if I need any more information.

Regarding the tag editing issue, it seems there is a bug in your tag editing program that is causing the Vorbis comment block to be duplicated. The FLAC specification mandates that there can only be one Vorbis comment block in the file.

[Gussy]

Many thanks for your help, Simon - foobar2000 did the trick with the editing!

Just let me know if you need any further info.

[BlueDog]

Sorry, I deleted yesterday's post as I was barking up the wrong tree - no pun intended.

I had the same issue yesterday with a download from 7Digital and, on further investigation, the problem appears to stem from a combination of things.

Firstly, the Vorbis comment block in the downloaded files does not strictly adhere to the spec as there is no vendor string set.

Secondly, updates in dBpoweramp R16.2 cause a new (correct) comment to be created in addition to the existing block if the vendor string is not set.

I'm erring on the side of blaming the download vendor for this one, as the problem wouldn't occur if the vendor string was set correctly in the first place.

The easy fix is to use dBpoweramp converter to 're-encode' the files, this rewrites the existing incorrect tags with the correct structure and allows you to edit to your heart's content afterwards with no problems. Just select all files, right-click and select convert - I keep everything in FLAC level 5 anyway, so I just select that option and let it do its thing.

You can see the difference in the attached screenshots between the 'before and after' files opened in a hex editor. The vendor string in the corrected file is 'reference libFLAC 1.3.1 20141125'.

Yeah, I know, I need to get out more ...

The downloaded file:
   

The corrected file: