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External Enclosures Discuss, NEC ND-3550A cannot work with 5.25" ENCLOSURE at CD and DVD Burners forum; it can read cd,cdr, but cannot read any dvd i ever burned... i tried dvd-r, dvd+r, dvd-rw, none of those worked. however, the drive works perfectly if put in the desktop, only cant work as a USB2.0 external drive. I tried another enclosure which works


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Old 21-01-2006   #1 (permalink)
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NEC ND-3550A cannot work with 5.25" ENCLOSURE

it can read cd,cdr, but cannot read any dvd i ever burned... i tried dvd-r, dvd+r, dvd-rw, none of those worked.

however, the drive works perfectly if put in the desktop, only cant work as a USB2.0 external drive.

I tried another enclosure which works fine...

is it possible some enclosures only support the standards below dvd-rom, but cant support dvd burners?


the chip of the enclosure is NEC D720130.

can any one help me on this problem?

cheers

Last edited by shankqiu; 21-01-2006 at 01:44.
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Old 21-01-2006   #2 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

the brand is Best Connectivity and the chipset is NEC uPD720130.

here it is:
http://www.necel.com/usb/en/product/upd720130.html

this enclosure detects burned discs as blank ones...

any ideas?
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Old 21-01-2006   #3 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

Applications Enables products with an IDE I/F (HDD, CD-ROM, CD-R/RW, DVD-ROM, etc.) to support USB 2.0.

does this mean it doesn't support DVD burners?

can a firmware update solve this? if so, where can i get the firmware, ive been googleing a long time..

Last edited by shankqiu; 21-01-2006 at 02:51.
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Old 21-01-2006   #4 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

Quote:
Originally Posted by shankqiu
Applications Enables products with an IDE I/F (HDD, CD-ROM, CD-R/RW, DVD-ROM, etc.) to support USB 2.0.

does this mean it doesn't support DVD burners?
Yes that is exactly what it means.
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Old 21-01-2006   #5 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

Welcome to the forum. As stated above, certain chipsets will not support optical drives. The best chipset for DVD burners is the Prolific 3507, and the most reliable source is here:
http://www.dealsonic.com/plpmblcousb22.html

They also make a USB model with the Cypress AT2 chip which I have never tested but Dealsonic says will work.

http://www.dealsonic.com/pl52usb20enf.html
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Old 21-01-2006   #6 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

Quote:
Originally Posted by alan1476
Yes that is exactly what it means.
but it says "etc"...
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Old 21-01-2006   #7 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

somebody helps me plz.........
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Old 22-01-2006   #8 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

?????
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Old 22-01-2006   #9 (permalink)
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Re: NEC ND-3550A cannot work with 5.25" ENCLOSURE

Quote:
Originally Posted by chas0039
Welcome to the forum. As stated above, certain chipsets will not support optical drives. The best chipset for DVD burners is the Prolific 3507, and the most reliable source is here:
http://www.dealsonic.com/plpmblcousb22.html

They also make a USB model with the Cypress AT2 chip which I have never tested but Dealsonic says will work.

http://www.dealsonic.com/pl52usb20enf.html
I have 2 USB enclosures with Cypress AT2 manufactured by Chronos and my 4551 will write, but not read at max speed.
So to sum it up
Quote:
The best chipset for DVD burners is the Prolific 3507
Here is a reading speed sample:
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