how long is too long ?

hi guys
just done a few mix's and the run tim is over an hour do you think this is ok for sites like mix cloud ?

http://www.mixcloud.com/parisbynight/tech-head-mix/

http://www.mixcloud.com/parisbynight...-long-version/

http://www.mixcloud.com/parisbynight...ouse-november/

http://www.mixcloud.com/parisbynight...ouse-mix-2013/

any feed back would be great
thanks guys :)

btw I'm on here already but had to re do registration as couldn't get in :(