AppleScript
UPDATED: Export Smart Playlist Criteria v2.0
Export Smart Playlist Criteria will create an XML file containing just the criteria of the selected Smart Playlist(s). This file can then be imported into any iTunes using the "Import..." menu command. Since the XML file contains only the rules for a Smart Playlist and not its track data, you can handily back up your Smart Playlist criteria or share with other users...just zip and email.
NEW: Rescue Playlists from Folder
The script Rescue Playlists from Folder will extricate all of the playlists in a selected Folder at once by making a copy of each in the Source column and then deleting the original from the selected parent Folder. Otherwise, to yank playlists out of a Folder, you have to drag each one--one at a time--to the left edge of the Source column.
UPDATED: Compare Two Playlists v2.0
Four year old Compare Two Playlists has been completely re-written. Quickly evaluates two playlists for tracks that are common to both and exclusive to each, creating a text file report on the Desktop.
UPDATED: New iPod Playlist From Selection v3.0
New iPod Playlist From Selection will copy the selected iTunes track, or the tracks of a selected playlist, to a new iPod playlist. Works only with iPods set to "Manually manage songs and videos", that is, not to sync.
UPDATED: eMusic Search v2.0
Added a "Similar to: Artist" option to eMusic Search v2.0. Also runs as universal binary and has some minor performance enhancements.
UPDATED: Needle Drop v3.0
Fixed an error in Needle Drop when canceling from the first dialog box, made it universal binary, and added the ability for it to quit automatically if you pause iTunes while running it. This script will play through the tracks of the selected playlist at your set time interval.
UPDATED: Make Bookmarkable v2.4
The newest version of Make Bookmarkable fixes a problem with files not being re-added to iTunes. Listen:
Recently, I had been seeing some reports of Make Bookmarkable mysteriously not working correctly for some users. The changing of the file type and extension of the selected tracks' files would go all right, but the file would not be re-added to iTunes' Audiobooks Library. After some investigation, the common thread of the problem was that the files were located on a MS-DOS FAT32 formatted external drive. Normally, Macs can deal with this. However, AppleScript cannot follow aliases of a file on such a drive unless the alias is the literal path. Make Bookmarkable changes the extension of files; such that an alias that earlier pointed to musicfile.m4a on a MS-DOS FAT32 drive doesn't recognize it when its name is changed to musicfile.m4b--unless you update the path of the alias to point to it. Do you follow?
Here's the thing: with an increasing number of Windows users switching to Mac and more Mac users working in Windows it's not out of the realm of possibility that they just plug their MS-DOS external drive into their Macs without re-formatting it. Also, as hard drive prices have gotten cheaper, users may be more apt to purchase a drive pre-formatted as MS-DOS. I know I've gotten a cheaper deals on MS-DOS formatted drives than Mac formatted, but, of course, I always reformat to HFS+. Considering this, I suspect I will be seeing this alias anomaly more in the future.
UPDATED: This Tag, That Tag Scripts v2.0
I've updated the This Tag, That Tag Scripts package to v2.0. These four scripts assist with swapping, copying, and appending data between two user-chosen tags in a batch of selected tracks. The latest version of each of the scripts now includes the "Show" tag, is saved as a script bundle (universal binary), and has general tidying of code.
NEW: Search CD Universe for Album
My friend Kirk McElhearn has a very fine article at Macworld on working with album artwork: where to get it, how to get it, and so on. He mentions that the CD Universe website is a good place to snag album artwork and so I thought I'd slap together a quick script to search the site. Search CD Universe for Album will use the album tag of the selected iTunes track as the basis for a "Title" search at CD Universe. You'll have to manually navigate the site once the search results page comes up, but at least the script gets you started.
UPDATED: Quick Convert v2.7
Quick Convert converts the iTunes track selection using your choice of encoder, restoring your Preferences-set encoder afterwards. Latest version is universal binary, ensures that files converted to AAC with the bookmarkable option are re-added to "Audiobooks" Master Library correctly.
