 Though compiled by AIP, the tracks are almost completely different from those in the corresponding volumes of the LPs and CDs described previously (although a sizable number of the tracks on ESD's "Pebbles, Volume 2" appear on both the earlier "Pebbles, Volume 3" LP and the later CD reissue).Particularly on ESD's "Pebbles, Volume 1", many of the tracks are either new to Pebbles or are buried on the higher-numbered volumes in the "Pebbles series" or Highs in the Mid-Sixties series.The albums had a limited run of only 1,000 each and are now difficult to locate; but, not surprisingly, the ESD and AIP CDs are often confused.