I'd like to restart the discussion in this thread because I recently exchanged a series of emails with Apple about why some of my purchased music videos are not showing up as upgrades even though the very same video is now available in the iTunes Plus format.
At first Apple said the reason they weren't showing up in my upgrades was because those videos were no longer available in the iTunes Store. Then I reminded them that they were available and even sent them the links to the iTunes Plus content.
So, now they come back and say that the "content was modified" and thus isn't eligible for the upgrade process and that I'd have to re-purchase the videos at full price if I wanted the iTunes Plus format. But wait a minute, isn't the upgraded audio and DRM-free nature of iTunes Plus a modification? If it wasn't modified why would you pay extra for the upgrade?
Obviously, this is not good customer service on Apple's part. First they responded with an outright untruth and then they claim that they can't be upgraded because the content has been "modified." They don't explain what they mean by modified but I checked the video preview and they appear to be the same content and the title, artist, and copyright/publisher are all unchanged so what has been modified? The only difference I can see is that the video durations differ in a range of from one second shorter to eight seconds longer. However, some of the other iTunes Plus video upgrades that I have purchased show similar differences in duration (probably due to changes in the encoding or added/removed frames at the start or end -- in fact one that I was able to check just added a copyright statement to the end of the video).
So, I'm wondering whether anyone else has had similar problems in getting their music videos upgraded to iTunes Plus?
By the way, BMG Music is the publisher/copyright holder for the content that Apple won't upgrade. I don't know if this is related to the problem, but it may be worth checking if anyone else has had this problem.