Norlead, the band that comes with Active is the worst, be glad it snapped.
MAKE SURE THE LENGTH OF WHATEVER BAND YOU GET IS AT LEAST 5 to 6 feet, lots are only 3 feet. Walmart ones are only 4 ft so don't use these.
I went to Target, got the Prospirit 3-pk band set for $10.99. Yellow - Light; Red - Medium; Blue - Heavy. Didn't say the length on the box, but they all work fine. EA's provided red band doesn't even compare to the medium band in my 3-pack. I reused the flat handles EA provided and setup my new band just like the original band. I used it once so far --- huge difference in my workout!! This would be my #1 choice, but I don't see it offered online. So if there's no Target near you, here's a few other ideas:
From Amazon, Thera-Band is a good brand. If you really want the burn, this assortment of heavy and ultra heavy resistance is great, but much more difficult than the included red band. : www.amazon.com/Thera-Band-Exercise-Heavy-Extra-Special/dp/B0010YC1NY/ref=pd_sbs_sg_3
if you need less resistance other packs are available, or even these single bands.
http://www.amazon.com/Thera-Band-Single-Latex-Exercise-Bands/dp/B000FGVZQ2/ref=pd_sim_sg_4
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