Kai, appears you are progressing….
After I discovered the dot_clean method mentioned above, I copied many years & GBs of .mp3 music straight from our iMac’s /Users/MyName/Music/iTunes/iTunes Media folder to V’s memory stick - took about 30 mins, then I did the dot clean and maliciously all the no play ._ files are gone, what I call a PTL (praise the Lord!) - took dot_clean at terminal window about 30 secs to finish cycle, but when I plugged memory card into the V, years of my wife's music folders from her imac (she sings specials) now reside on the small thumb drive & W/O the ._ files!! Pretty amazing how you can now reduce a box full pile of CDs to a small 1” 32gb memory drive.
I'm writing up a recipe for her to first create the Artist_Name folder on the thumb drive, rip the mp3 files (usually a demo, high, medium, low, w/ vocals, w/o vocals) from the CD onto the iMac where they reside in the iTunes Media Folder mentioned above. She will copy the 6, or 7 files into the thumb drive’s Artist_Name folder, then I'll have her execute a script file, much like a .bat file from DOS days to remove the no count files w/ Dot_Clean - all done in a few mins. She’ll be able to practice in her new sound proof studio (our garage parked '17 V) all w/o digging thru her CD case.
Better would be to somehow attach the small thumb drive onto the house LAN much the same way you would share out a NAS drive. With the V Acc-On mode, & connected to house wifi, we could simply drag the new mp3 files onto the V's NAS drive w/o first removing it from the USB port - maybe someone has done this, or maybe it is possible now - don’t know. I’d also like to know if Honda would only come up w/ a way to turn off V from acc-mode w/o 2ndly going to on-mode, then off....just like..how do you keep the engine running from a remote start w/o killing the engine first, unless you are talented enough to press the brake and the start button at the same time to keep engine running w/o first killing it....hummmm, maybe talked about some-where else in this site - but for now, I happy to keep songs in .mp3 format, was thinking I was going to have to burn all the CDs from a Win box into WMA format which would have made me completely unhappy.