Power Rangers SPD (Space Patrol Delta) --- 5 DVDs or 7 DVDs????

[fanSte]

http://i3.ebayimg.com/01/i/000/fa/5b/9b94_1.JPG

http://ecx.images-amazon.com/images/I/51SDayvdtzL._SS500_.jpg

Whats the difference?

TIA

fanSte.

[fanSte]

5 disc:

http://www.play.com/DVD/DVD/4-/2839693/Power-Rangers-SPD-Vols-1-5/Product.html

7 disc:

http://www.play.com/DVD/DVD/-/46/61/-/5822369/Power-Rangers-SPD-Box-Set/Product.html