To maximize your 4GB limit, you must modify Windows boot settings:

: It was one of the first versions to introduce native support for 4K resolution (up to 4096x4096 pixels).

remains a landmark release in the evolution of non-linear editing (NLE) software, particularly for users of 32-bit (x32) Windows systems. Released in late 2009 , version 9.0c was the final major sub-update of the "9 series" before moving toward the 64-bit dominance of later versions. Overview of Sony Vegas Pro 9.0c (x32)

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