Sharing an external drive between mac and windows

[danisrael]

I am a mac tdm studio sharing files with a windows LE user, and we are trying to work off a single portable drive. We were trying to share the files on a drive formatted to HFS+ (so the MAC considers it a valid audio volume), and then using MediaFour's MacDrive so that the XP system could see the drive.

Windows does see it and ProTools lists it as a Recordable drive in the XP systems workspace. However, even attempting only a single mono track of audio results in a error 87.

Does anyone have a workaround or better method of sharing between platforms on a single drive...