Why can't I register some dropped domains ?

[Emmy101]

Do the dropped domains list go (or maybe sold) to some kind of filtering company before they are released to public because I can never register a good domain that I find in the deleted domain list and it doesn't show if its registered by a new user while other domains on the same list show as available, what is happening here?

 

[MarkedOne]

You have to use a domain backordering/dropcatcher service like dropcatch.com, namejet.com, dynadot.com, pheenix.com.

 

[davidc1]

about 6k domains are snaped everyday, so it's not possible to see them available.

 

[freedom30]

...if you are using godaddy use a different registrar. I use Dynadot. Godaddy has some kinda thing where many times it will tell you it's unavailable. Happened to me several times before I got wise.
I go to a different registrar on deleted names and the name is available so I buy it.