Women and the long hours culture

Unfortunately I wasn't unable to attend the "Raising your profile for a successful career in IT" event hosted this week in London by WIT (Women In Technology) in association with Microsoft. If any of you did I'd be interested to here what you thought of it.

What interests me is one of the statistics from the survey carried out earlier this year which indicates that 75% of respondents felt their employers had a 'long hours' work culture. Apparently this is one of the factors discouraging women from working in technology and leaving it never to return. Personally I don't mind putting in the hours when it is needed. However I fully expected to be compensated for my time. Is the issue really the long hours, or is it about being adequately compensated to make up for time not spent with family? As a 30-something woman myself, I wonder if in a few years I'll be one of those statistics who want to work in technology but find it women-unfriendly.

Source articles:
Women In Technology
Computing