#039 of 2D Dream Digital Anthology, this is the first half of physical form 2D Dream Comics #251, the 2nd half is here, uploaded by revive2006.

bought and ripped from
http://www.dlsite.com/books/work/=/product_id/BJ010721.html

info on mugi: (physical)
http://doujinshi.mugimugi.org/book/466007/

get the physical copy:
http://www.amazon.co.jp/gp/product/4799201468/

physical version exclusive content:
闇よりの復讐者 by ぱふぇ
from 二次元ドリームマガジン Vol.60, uploaded by genl.

Vol.2 content:

甲殻戦士アロー ～淫獄編～ by 助三郎
included in 牝豚END (二次元ドリームコミックス282), uploaded by bb99.

エロエロ動画が手篭をお知らせします by 抹茶ちゃもも
not being included in any tanks yet.

ピュアー＆ビッチ by 海原圭哉
included in 可憐な花は摘まずにはいられない (二次元ドリームコミックス279), uploaded by Drksrpnt.

contents:

page 005-024 ハメ撮り療法
by 冬扇/Tousen
included in もう堕ちるしかない (二次元ドリームコミックス303)

page 025-044 ふぉとほりっくIDOL
by 大庭新/Ooba Nii
not being included in any tanks yet.

page 045-064 淫行カメラと競泳水着
by にゃご丸/Nyagomaru
included in 凛女の敗淫 (二次元ドリームコミックス273), uploaded by SXIndy27.

@YouStoopet:
These were original/new contents when they released, later may be collected in author's tanks respectively, same way to the materials on Comic Unreal. However Comic Unreal is another label by the same publisher, these are 2D Dream Comics contents.

Usually 2 digital copies comes first, then the physical copy collect these materials plus a bonus chapter that revealed on 2D Dream Magazine. If the physical copy come out first, then one of the digital halves will have the bonus.

Base +16, shadows_kami +28, VladimirUrsinovich +2, observer1980 +27

Yo Lord of Evil.
are these comics like a collection of chapters that were in Comic Unreal or are they original?

Base +4, observer1980 +27, virgo2725 +2

Errr.... Lord, some of those galleries you've linked has went the way of Titanic and no longer exists...

Base +13, frankmelody +15, observer1980 +27, virgo2725 +2

17,19,56-58,60,61

Base +3