IPod Touch IOS4 AudoBook Playback issue

Question

Some audiobooks (purchased from iTunes Store) with long tracks sometimes have "indexing marks" which split these tracks into smaller parts (usually in half) to allow quick ">> Forward" or "<< Back" access.
Prior to IOS4 upgrade, these tracks would show the entire track with the "indexing mark" shown as a tick-mark on the track progress bar.
After the IOS4 upgrade, I'm now seeing issues with this formating.
An example would be the Robert Jordan "The Great Hunt: The Wheel of Time" audiobook.
It has 11 tracks, each about 2.5 hours long and an "indexing mark" splitting each of these tracks in half for quick forward/back access (as noted above).
Rather than displaying the ENTIRE track with tick-marks, it now displays only 1 segment or the other of the track.
If it shows the second "half" of the track, if you hit <<Back, it will not go to the actual start of the track itself and will only return to the beginning of the index-mark.
In the audiobook list for the book (using the above example) it shows only 11 items (1-of-11 through 11-of-11) and not 22 entries (1-of-11-part1, 1-of-11 part 2 etc).
On the track list where it shows "time remaining", when it mistakenly starts on the second half of the track, it shows that it's at the beginning of the entire track, yet the "time remaining" confirms that this time is only a portion of the entire tracks length.
I eventually found that, if I double-tap the "<<Back" button twice, it would go back to the actual beginning of the track, but only if you double-tap if quickly.
Otherwise, it will move to the second half of the previous full-track.
For example, if I select Track 2 from the track list, it will start on the 2nd half of track 2.
If I click "<<Back" it moves back to the beginning of the 2nd half if any of the track has played (even 1 or 2 seconds).
Tapping it again will move it back to the 2nd half of Track 1.
If you either stop the playback completely and tap back (so no actual playback happens) OR if you double-tap the "<<Back" button quickly (so as to not allow any time for playback), you can access the 1st half of the track.
However, in either case, you cannot tell one portion of the track from another by looking at the display.
If you don't know how the story actually goes, you may not even be aware that you're not hearing the entire track.
I'm not sure if this is a display issue or a incompatibility with the indexing marks.
I'd purchased a movie (before IOS4) on iTunes store (Ratatouille) which also had these types of indexing marks, though in the case of the movie, it had over a dozen marking each movie "chapter" rather than just the 1 in the audiobooks.
After the IOS4 upgrade, the Movie index-marks are now gone and it shows a progress bar with no tick-marks at all.
this makes me thing these marks were removed for a purpose, but perhaps audiobooks were overlooked and the marks not removed.
Anyone else see this problem and/or have a solution?

Answer 1

That problem is typically dues to a dirty or bad headphone jack'
- Try cleaning out/blowing out the headphone jack. Try inserting/removing the plug a dozen times or so. There is a little switch in the headphone jack that disconnects the speaker when the headphone jack is inserted.
Try the following to rule out a software problem
- Reset the iPod. Nothing will be lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup
- Restore to factory settings/new iPod.
- Make an appointment at the Genius Bar of an Apple store. Seems you have a bad headphone jack.
Apple Retail Store - Genius Bar
If not under warranty Apple will exchange your iPod for a refurbished one for this price. They do not fix yours.
Apple - iPod Repair price