TCZ vs SCM - why choose one over the other?

[Fallingwater]

I've just installed the newest Tiny Core and I'm currently trying to figure out how to install stuff.
I've Googled about SCMs and I know they're self-contained, but beyond that I can't quite figure out why I should prefer them over TCZs, or why I shouldn't.

For instance: Firefox 12 is available both in Apps and ScmApps. Which to install, and why?

Thanks.

[gerald_clark]

Search the forum here.  It has been discussed several times.

[rayroko]

RTFMing someone off is not a good way to expand a user base
- the info on SCM vs TCZ is scattered accross different forum topics at best, and I think that somebody should write a FAQ topic on SCM vs TCZ, because it seems to cause confusion to new users. For example, is being self-contained a worse alternative hard disk space -wise over a longer period of time (since the scm must contain all the dependencies in itself, thus causing several same required libraries to exist in different SCM packages).

[gerald_clark]

Go ahead. Write one.

[bmarkus]

Please note, SCM is dropped in TC 5.x

[tinypoodle]

wiki consists of user contributed content and forum login is valid for wiki as well.

Hic Rhodus, hic salta