ITunes sync bug causes space on iPod/iPhone to be gradually lost over time

Question

This topic pertains to iTunes for Windows version 10.1.1 and most likely all prior versions. At the time of this writing 10.1.1 is the latest version.
I have clearly identified a bug with the procedure iTunes uses specifically to copy Music over to the iPod and iPhone units. A detailed description with steps to reproduce follows, but first the summary: Space is gradually wasted by iTunes erroneously copying certain tracks twice! The 2nd copy is not recorded in the itunesDB file, and space wasted on these duplicate tracks is counted under "Other" in the iTunes capacity screen. It is impossible to ever retrieve this space from the portable device without doing a factory restore on the Summary screen, which of course will also wipe out all your Apps, Videos, Photos, Music, etc at the same time. Hardly an ideal workaround!!
Details:
When several tracks are to be copied to the portable device; either an iPod or an iPhone, and I have successfully reproduced this on both an iPod nano 5th Generation and an iPhone 4, sometimes a track is accidentally copied twice while, one of the selected tracks isn't copied at all. The user will notice when this occurs, that during their sync, one of their songs just seems to be missing. Syncing again will then copy the track which was missed during the last sync, but unfortunately, the 2nd copy of the track that was erroneously duplicated remains. The track which is duplicated appears in the hidden folder on your iPod file system as both the AAAA.mp3 filename structure and the <track name>.mp3 file name. Oddly enough, when this bug occurs, the itunesDB does not associate to the AAAA.mp3 like it normally would, but to the <track name>.mp3 and the AAAA.mp3 file is just wasted space on your device which cannot be recovered without manually deleting this file (a task which is impossible on an iPhone without hacking the device).
It is easy to reproduce this. This is very obvious if you start with an empty, new iPod. Sync a bunch of tracks to your iPod (the more the better), in fact this cannot happen if you only sync 1 track at a time, then check to see if the number of tracks is equal to the number of tracks that should be there. i.e. did the sync seem to just miss 1 or 2 tracks?
Make sure "Enable disk mode" is checked for your device, and browse to (Drive Letter):\iPod_Control\Music\ and you will eventually find that exact number of files which have actual track names instead of the standard AAAA.mp3 type filename. Next, in iTunes, remove ALL songs and any other forms of audio (such as podcasts), from the device. Your music folder techincally should now be empty, but as you browse through the hidden Music folder in the device, you will stumble upon a couple of files that remain. These are the orphaned files I've been talking about.
The effect:
Over time, with repeated additions and removal of songs from one's device, these files accumulate. The iPod owner, none the wiser, will start to wonder why "Other" in the iTunes capacity display is continuing to grow. I was highly suspicious after cleaning out my iPod entirely, that "Other" was still showing 1.6GB!! I browsed through the filesystem wondering why which led me to discover tons of various music files in the music folder which shouldn't have been there (after all, iTunes shows no music stored on this device).
The Fix:
Some sort of bug is causing this erroneous duplicate copy to be generated, and then the database to actually reference the erroneous copy instead of the AAAA.mp3 copy. One workaround iTunes could actually build in some sort of enumeration function that scans all of it's internal F## folders in the Music folder looking for these orphaned files, and simply erase them if they are not contained in the itunesDB. Pushing out this type of behavior into a new iTunes release would also fix the problem for all the people who've already racked up GBs of wasted space as that space would suddenly become available again for apps, tracks, and other files.

Answer 1

Two steps forward - one step back.
Thanks to insight from others here I enabled disk use and went to [drive letter]/iPod/control/music
There I saw a long list of folders called F00, F01, F02 etc.
In my case there were 49 of them with roughly 400 files in each folder.
The bulk of the files were named ABCD.mp4 down to ZYXW.mp4.
In each of the fifty folders were, as predicted above, a handful of song files labeled as such - ie borntorun.mp3 or iseered.mp4
I opened each and every one of the folders, deleted the files with real names and synced the pod.
On my 120 GB the yellow "other" fell dramatically, down to under 1 GB. Which is under 1% of the total. Not great but acceptable.
So far, so good.
Now that I had fresh space I set about adding new songs to the pod.
Imagine my disappointment when I rechecked the F00 to F49 folders and saw that song name files had crept back in. Not as many, and I was able to delete them quickly and keep "other" under 1 GB. But still. It's like having crab grass or rodents.
Is there any hint that iTunes might address the underlying cause?
In the gripping process of deleting four or five files from each folder I noted that some specific files came up again and again. Just for laughs I'm going to delete and re-add those songs in case that helps.