CR has blocked all BTC withdrawals for the last couple of days. The only way to get BTC out was via another currency. I managed to get my money out only after going to LTC. Took a beating on the exchange rates and fees but at least I got most of it out before it went tits up.
If you have coins in there, get them out ASAP would be my advice.
new owner Danny speaks
http://pastebin.com/K7cGNy15Danny (new ceo) claims he is injectins some bitcoins in there or did you mean blackcoins? He said they are not blocked nor ltc but they just don't/didn't have any. At least atm they are not just simply folding up. I am going to trade there but not just keep lots in there for a while. Maybe put in some, trade, then not keep too much in there for a while till it can be shown they are safe, how that might be I dunno. The exchange does have a lot of volume/users as others have pointed out.