I created a 30 second ring tone from Limp Bizkit's Take a look around song. After creating it, I reset the start and end times of original song. I synced them both. Full song shows duration as 5:20 but stops at 30 seconds when I play it in iPhone 5s

I created a 30 second ring tone from Limp Bizkit's "Take a look around" song (I bought Limp Bizkit's Greatest Hits album from iTunes Store)

I renamed the custom made ringtone to "mission impossible.m4r"

After creating it, I reset the start and end times of original song. I synced them both using iTunes 11.1.5 in Windows 7 Ultimate 64 bit.

Full song shows it's duration as 5:20 but stops at 30 seconds when I play it in iPhone 5s. Same song plays 5:20 in my PC.

I then deleted the song from iPhone and resynced it. Still the same result.

I then deleted the song from. IPhone and downloaded the same song from iCloud directly using iPhone's 3G connection. It downloaded the song but still stops at 30 seconds.

I tried deleting the whole album, restarting the phone and Manually managing Music in iTunes, still same result.

Please help me in sorting this problem out.

Thank you.