How much is the Nirvana song catalog worth?

Recently...
http://www.sundaymirror.co.uk/archive/archive/tm_objectid=16444555&method=full&siteid=62484-name_page.html
4 December 2005
SONG SALE £70M FOR COURTNEY

ROCK widow Courtney Love will net £70million by selling her late
husband Kurt Cobain's songs.

The actress and rock singer is selling a quarter of the Nirvana
frontman's back catalogue to disgraced US lifestyle guru Martha
Stewart.

Released from jail this year after five months for insider trading,
Stewart wants the songs as an investment.

A friend said: "It's an astonishing deal. It sorts out Courtney financially."

Cobain and Courtney, 41, wed in 1992. They had a daughter Frances
Bean, now 11, before he killed himself with a gun in April 1994, aged
27.

Cobain rose to fame with songs like Smells Like Teen Spirit and Come
As You Are. The album Nevermind sold over 10 million copies.

So that is 70 Million * 4 * todays exchange rate 1.7354 = $48 591 200
Now..the story doesn't indicate if this is ALL of Nirvana's songs or
just Cobains but its a good start.

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Thanks.

Mate I think you are off by a factor of 10. 4 * 70mm GBP is roughly
$500mm, not $50mm.

Sorry for dropping the 10...hopefully the story itself is clear enough.