By far the best replacement for the sony mdr-w08l is the sonxtronic xdr-8000.
they are on amazon and almost exactly the same as sony mdr-w08! I looked everywhere until i found these. the comfort for really long runs is why they are great.
some others start good but always get uncomfortable.
http://www.sonxtronicxdr8000.com/
http://www.sonxtronic.com/
http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=sonxtronic
sonxtronic xdr-8001 almost same as sony mdr-w08 but white
sennheiser’s sound decent but they hurt my ears after a while