Since I might run into legal issues about this keeping a link I have decided to take the link down and only provide a tutorial. I will keep this topic up as sort of connection to that tutorial.
For some, Yes. Thats why I made this. Until they become experienced enough someone needs to look out for the community whom have no idea what so ever about this stuff. Plus extrating minecraft.jar gives you all the doc class files and other stuff and some people dont know, whom can work up to that point, don't know which files they need or don't.
You would probably be better suited by doing a tutorial on how to backup MC textures. AFAIK even though you edited your OP to say it's not your creation, it MIGHT still fall under the rule of not distributing Mojang's stuff.
One final thought:
I think in it's current state the new v2.0 MCPatcher HD Fix is in, it might be a moot point to have a backup default texture pack anyway.
Edit: Slight grammar fix.
Rollback Post to RevisionRollBack
It's the ears, right?
Girls just love the fuzzy ears! Nyao~!
Well now you have to follow a tutorial to get your extra default backup/ or new texture pack. (Depends if you want a back up or you just want 1 to edit xD)
The tutorial's link:
http://www.minecraftforum.net/viewtopic.php?f=1036&t=272586&p=3813686#p3813686
One final thought:
I think in it's current state the new v2.0 MCPatcher HD Fix is in, it might be a moot point to have a backup default texture pack anyway.
Edit: Slight grammar fix.
Girls just love the fuzzy ears! Nyao~!
IGN: Biscot
https://www.twitch.tv/moxz - Various games.