Q-Missed your post last night and just saw it this morning--

There is a relatively new collection of Caruso's recordings of Neopolitan songs(though he was a Neopolitan street singer before studying opera, he apparently only recorded a few of songs, and late in his career) on RCA Red Seal, it is called "Caruso: Italian Songs"--the recordings are a mixture of his original vocals with newly recorded orchestral tracks, though--

As you undoubtably know, Caruso died before the microphone was introduced into recording, so this is a truly weird combination of sounds--

One of the old guys in my college music dept had actually heard Caruso perform a number of times, and said that though his recordings were incredibly popular, they never captured the essense of his voice--even still, Victor created the Red Seal label especially for him, and his intial recordings were sold for $5--about 1905!