You're probably downloading different unreleased Zabriskie Point songs that are mislabeled as Fingals Cave. If I'm not mistaken, these are all the Zabriskie tracks:

Heart Beat Pig Meat (soundtrack and film version)
Crumbling Land (soundtrack, fast, extended, film, and rock versions)
Come In Number 51 (Soundtrack and film versions)
The Violent Sequence
Love Scene 2 (vibes)
Unknown Song (aka Rain In The Country, soundtrack, rough, early, and alt versions)
Country Song (Soundtrack, alt, humming, and instrumental versions)
Love Scene 4 (Soundtrack & piano vibes mix)
Love Scene 6 (Soundtrack and alt versions)
Oneone (final, early, extended, short, alt versions)
Fingals Cave

I'm sorry, but I don't have the track lengths, but if you track them down you should be able to determine which is which. By the way, this thread should be in the After Syd forum.

__________________
what do you teach your children about me?
what do you teach your little children about me?
pimp, thug, bling drug lord of the undergrounded kings
how can you be so sure i won't call down the rain?
what do you teach your little children about me?
you point your gun, wait, hide and run. i see it plain