Originally Posted by takeshi
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.
Nope. Pluralizing acronyms, initialisms, or any other word with and apostrophe is never correct. Period.
"CD's" stands for "Compact Disc's", as in: "The CD's color is silver".
An apostrophe is used to show possession in this case.
If you use "CD's" to denote plural, then to write a sentence about multiple CDs that have the color silver, you'll have to write: "The CD's' color is silver"...two apostrophes... http://www.apostrophe.org.uk/
Maybe you should do more research before you comment...