MacBook Pro and 16x blank DVD

You can use 16x DVD blanks. The rating only specifies the maximum speed at which you can record, not the minimum speed.



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Then get 8x blanks. However, there's no particular reason why you can't record at 8x on a 16x blank DVD-R.

Whatever.

While it can be difficult to find 8x discs you might find your issue is media brand related in that I've never had an issue burning to 16x Verbatim discs in a 2x, 4x and 8x drives.

it's impossible to find any 8x

Difficult, yes. Impossible, certainly not.

http://discussions.apple.com/thread.jspa?messageID=3510853

The Taiyo Yuden 8X spindled DVD can be purchased at various sites on the net for as little as 23¢ each, delivered in the USA. They are the very best single-layer DVD media for Mac super drives you'll ever find; Verbatim makes the very best dual-layer DVD media for Mac, as well. You cannot go wrong with either product.

(I sincerely hope this answers your question, Albert, for this thread does not need another rude, ill-considered response like your one to Kappy.)

iMac 20" G5 PPC (iSight) Mac OS X (10.4.8)

Try www.supermediastore.com I just bought 200 8x Taiyo DVD-R's and 200 Paper sleeves SHIPPED for $59.99

The reel technical answer is that there is no firmware upgrade for your computer that will burn 16x. Probably never will be. Get over it. You can buy Japanese-made Taiyo Yuden that burns at 8x. They are a Tier One manufacturer.