Hi , i wanna know if can i add a compilation album of various artist ? a few weeks ago i added a compilation album of various artist of a band from Ecuador , and recently was deleted but the other bands of this compilation still have this album on their discography .

Please, read the rules:

http://www.metal-archives.com/content/rules

"Valid Albums Only" > "Acceptable vs Unacceptable Releases":

Unacceptable releases:

Bootlegs of any kind (the ONLY exception is Dawn of the Black Hearts, for historical reasons)
"Various artists" compilations (albums with over 6 participating bands are usually considered V/A compilations rather than splits, but not always -- see below)
Samplers (even if they have below 6 bands, samplers are not acceptable!)
Promo-only releases sent to labels
Unreleased recordings
Private releases (although there are some exceptions to this)
Inalienable bonus material (that is not sold separately)
Upcoming albums, unless all the information (exact release date, tracklisting and cover art) is 100% confirmed by one official source, such as the band or the label
Albums with empty or incomplete tracklisting

So no, you can't and you shouldn't have added it.

Someone should look forward his modification story and set that supposed VVAA compilation album to a split (as it really looks like a legit 4 way split CD)

Taken care of, BlackFlag.