Yes I couldn't speak too highly of the work of John RT in reclaiming the sounds of old jazz and blues recordings. Also the Australian Robert Parker for his series of "Jazz Classics In Stereo" re-issues. Both these guys gave, amongst many other recordings, the 1923 recordings of King Olivers Creole Jazzband an unbelievable clarity and immediacy. This new research promises much, I'm looking forward to hearing some great old stuff.