How to tag full releasedate to view on iphone?

If some know how to do this please tell me..
On my iphone it only shows the year and I want the day and month too.
I tried several things that I found on this forum but nothing helped.
When I've converted my mp3 too m4a he showed my copyrigt tag, so that I solved.
I just need the full releasedate now...

thxx

Take a look at this thread. I think it addresses your concern.

Thx mate, I'll check it out..