2.3 2010-01-01
	Added 80 minute CD capacity and relabelled old "CD" as "CD70"
	Added missing word "bytes" to tooltip for Terabytes.
	Corrected tooltip for 70 minute CD.
2.2 2008-05-27
	Set up adaptation of font sizes to Tk8.5+ under X11.
	Added workaround for bug in bigfloat::todouble in 8.5.
2.1 2008-01-22 The toplevel no longer expands and contracts.
    Miscellaneous cosmetic improvements.
    A French translation was added.
2.0 2007-12-18 Adds ability to do calculation in either direction, validation of input, and
    box showing compression ratio.
1.0 2007-12-15 Initial release.
