It seems that early reports I had read were not totally correct. Here is, what seems at the moment to be, the correct facts. Only products from Avex Pictures are included in the ban. The export of CDs seems to be fine. This has alleviated a bit of the concern for music fans, not so much for anime fans though.
Sorry for the incorrect early reports, I can only work with what I have you know.
Story at jpopasia
Please see supplemental story for new details.
Oh Avex Group, do you have no business sense at all? Starting at 18:00 JST February 15, 2017 products produced by Avex Group, of any type, will not be exported by them or any online shops. I am not sure if Avex knows how large the Japanese music fan base is outside of Japan (along with the anime fanbase as well). One has to wonder if they have looked at export sales numbers produced by HMV, CDJapan, Amazon.jp or Tower Records. It would seem to me that this is all a horrible business move.
Story details at Arama Japan