Most of the Yoga DVD's available on Gaiam.com either feature 30 or 60 minute workouts. The Yoga Conditioning for Women DVD features one 60-minute program and one 20-minute program. I recommend purchasing a couple of Gaiam DVD's that feature more then one program, and mixing your workout up to complete your ideal 40-45 minute practice. If you have any further questions about title selection, please contact a product specialist at gaiamprodspec@gaiam.com or 1-877-989-6321.