Currently Being ModeratedFeb 12, 2013 11:05 AM (in response to SteveF48)
First things first. Restore any media files you can find in your recycle bin.
Depending on where your files are and the options under Edit > Preferences > Advanced there are ways of using Add Folder to Library in that can create multiple copies of the same file or multiple references to the same file. Depending on which type you duplicate is involved you may or may not need to preserve the file when trying to delete the duplicate entry in the library.
If you restore the files from the bin, close then reopen iTunes you may find that you have repaired some of the broken links. I have a tool for cleaning duplicates but before you try that you should look at fixing the immediate problem. You should also backup your library in case anything else you try has unexpected consequences.
Currently Being ModeratedFeb 15, 2013 4:06 AM (in response to turingtest2)
Thanks for your help.
I've now removed all of the duplicates from iTunes library, but everything is shown twice on my ipad!
I had problems transferring the music across. I couldn't understand why the ipad showed 2000 tunes, but just scrolled through the list whenever I tried to play a song.
I fixed that by syncing with music unchecked, then syncinhg again with it checked. iTunes said that it would delete songs from the ipad whislt syncing, but it seems to have just added the names to the library each time. I know that it hasn't really duplicated the files, because there isn't enough memory in a 16gb ipad. (Apple prices are obviously designed to deter people from buying bigger ipads. I can but a 2tb disk, or multiple 32gb SDHC cards for the extra £80 it costs for a 32gb iPad.)
I figured that the ipad would come with good software to allow me to play music over my network. How wrong can you be?
Anyway the point is, how do I remove the duplicate entries, without deleting any music, from my ipad?
Currently Being ModeratedFeb 16, 2013 8:41 AM (in response to turingtest2)
It kind of sorted itself out after several re-syncs, rebooting the ipad and 4 hours of work. Now it has gone completely bonkers and the ipad only shows 5 albums, though itunes shows about one hundred.
I had some missing tracks and still some duplicate files and couldn't find a way of simply refreshing the library data, so I deleted the offending albums then dragged them to itunes. The ipad said that it contained
iTunes also appears to have a mind of its own and has decided to play all of the tracks I've restored (on the PC). It is also ignoring all attempts to synchronise my music.
I contacted Apple support about 3 hours ago, but I guess that they only work 9-5 Mon-Fri.
Currently Being ModeratedFeb 16, 2013 9:12 AM (in response to SteveF48)
I was a trifle busy the other day and forgot to come back with more information. For the future or for anyone else looking to clean up the duplicates in iTunes here is a better process...
Select the Songs view (or one of the List views) and use Shift > View > Show Exact Duplicates as this is normally a more useful selection. You need to manually select all but one of each duplicate group to remove. You also need to consider whether you have duplicate files or just duplicate entries in the database. In the first case you want to trash the files for the tracks you're deleting, but not in the second.
(If you don't see the menu bar press ALT to show it temporarily or CTRL+B to keep it displayed)