Originally Posted by RoNNY
You probably want to load "CDs" not "CD's", much like you probably drove many cars not "car's"...
Your car example isn't germane since it isn't an acronym.
Pluralizing acronyms with an apostrophe is correct. The more modern approach is to omit the apostrophe. Acronyms that are typically regarded as words, such as laser, are generally not pluralized with an apostrophe.