Nightmare’s OHP had the following statement released regarding their upcoming releases.
“We had been planning on releasing “NIGHTMARE 10th anniversary special act vol.1 GIANIZM ～Tenma Fukumetsu～” on April 28th, 2010. However, we will have to postpone the release due to various reasons.
We humbly apologize to those who had been looking forward to this release and will set up a new release date soon.
Thank you kindly.”
Source: Nightmare New Releases OHP