... I also put two more mp3s, one with and another without glitches. The difference is clearly audible. And, the one without glitches was downloaded again via ftp from the empeg.
Both your "pairs" of MP3s are different rips -- they have different ID3 tags and everything. It's not like one is a failed attempt to download the other. (Unless Jemplode is being really clever and re-tagging the tracks. But I didn't think it did that.)
I also can't help noticing that both the OK ones claim (in ID3) to be ripped with Audiograbber and encoded using Lame, whereas both the "glitchy" ones claim to be ripped with, uh, "Taym's Grab & Encode"
Peter