You said earlier 'let's not introduce time domain problems', yet shortly afterwards you talk of downsampling to Amiga compatible rate for testing, by this I presume you mean 28836 Hz. I thought this thread was all about the quality of Paula. There is no reason not to use 44.1KHz, just use a double scan mode (play16 will require DOUBLE tooltype though). If your A500 can't open a double scan screen, you might want to upgrade it to ECS). I just don't see how you can make comparisons with cd quality if downsampling.