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[Web] SWAUG REVIEW: LiteOn DVD ReWriter On AmigaANN.lu
Posted on 04-Mar-2004 20:37 GMT by SWAUG REVIEWS13 comments
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DVD Writing on the Amiga -- at last!

We have tested LiteOn's 8x DVDRW on the Amiga with DVDRecord software.

You can read the full review on our website
This is the first review under with our new website look which will be launched in the next few months. Hope you like it!

SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 1 of 13ANN.lu
Posted by Josť on 04-Mar-2004 19:47 GMT
Thx this is cool...
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 2 of 13ANN.lu
Posted by Anonymous Orc on 04-Mar-2004 21:20 GMT
OS4 supports DVD+/-RW too 8-)
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 3 of 13ANN.lu
Posted by Raffaele on 04-Mar-2004 21:45 GMT
Nice... Very, very nice.

Now we are waiting for DVD RAM.
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 4 of 13ANN.lu
Posted by Anonymous on 05-Mar-2004 00:32 GMT
In reply to Comment 2 (Anonymous Orc):
Cool, its been released?

Where to buy?
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 5 of 13ANN.lu
Posted by Joe "Floid" Kanowitz on 05-Mar-2004 02:47 GMT
Call me stupid, and perhaps this is how *everyone* masters their DVD-Rs with dvdrtools, but to actually be compliant, shouldn't the ISO be encapsulated in UDF, as per http://www.burnworld.com/dvd/primer/filesystem.htm?

The manual page for my old? version of mkisofs notes:

-udf Include UDF support in the generated filesystem image. UDF sup-
port is currently in alpha status and for this reason, it is not
possible to create UDF only images. UDF data structures are
currently coupled to the Joliet structures, so there are many
pitfalls with the current implementation. There is no UID/GID
support, there is no POSIX permission support, there is no sup-
port for symlinks. Note that UDF wastes the space from sector
~20 to sector 256 at the beginning of the disk in addition to
the spcae needed for real UDF data structures.

...so it is/was experimental in this particular software, but it's supposed to be part of the spec. Will Windows happily read a purely ISO DVD? Can Mac of both flavors happily automount same?
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 6 of 13ANN.lu
Posted by Joe "Floid" Kanowitz on 05-Mar-2004 02:50 GMT
In reply to Comment 5 (Joe "Floid" Kanowitz):
Oh, and most obviously, can *Amiga* with the usual ISO9660 solutions (pre-OS4/MOS) handle the properly formatted disc?

There's no great harm if we have to 'break' the standard to support interoperability on our own machines, but we should be aware of what we're doing.
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 7 of 13ANN.lu
Posted by Joe "Floid" Kanowitz on 05-Mar-2004 03:02 GMT
Whoops, final note to put out for consideration - the Power Calibration Area on a CD-R contains a limited number of slots; DVD media is probably similar. Under ordinary usage, the 100 provided are far more than you'll ever need, but I've met at least one drive (using the "Seamless Link" brand of buffer underrun recovery) that would apparently recalibrate for each link. Something else to keep in mind.

(I could only make this a problem for myself when trying to duplicate from a 12x reader to the 52x writer at full write speed; in spite of throwing the sense code, discs would still complete and be readable, though of course, at less presumed reliability for lack of OPC... YMMV.)
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 8 of 13ANN.lu
Posted by brotheris on 05-Mar-2004 05:42 GMT
Why not use makecd (for example) to generate iso's ? Or doesn't it allow creation of big iso's ?
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 9 of 13ANN.lu
Posted by StAn on 05-Mar-2004 07:50 GMT
Nice article and website.
However AFAIK it's impossible to create files bigger than 2GB under AmigaOS. So, no bigger than 2GB ISO images!
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 10 of 13ANN.lu
Posted by justnotbill on 05-Mar-2004 08:05 GMT
In reply to Comment 9 (StAn):
http://kuddelone.gmxhome.de/dvdrtools/dvdrtools-e.html

"Thanks to the old dos.library AmigaOS is limitated to a maximum file size of 2 GB. This means that you can use readcd only for reading DVD`s with a maximum capacity of a bit less than 2 GB to do 1-to-1 copies of DVD`s"
"The program mkisofs has a split option to split the output image file into 1 GB chunks wich should be concatenated by dvdrecord automatically to a single track, but dvdrecord is definately NOT able to perform this concatenation because the concatenation code is simply not included in dvdrecord. This concatenation can only be performed by closed-source software "cdrecord-proDVD" which is not available for AmigaOS. But currently I am working on a solution for this problem so maybe in the not so far future we will be able to forget the annoying 2 GB limit."
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 11 of 13ANN.lu
Posted by SWAUG on 05-Mar-2004 09:18 GMT
In reply to Comment 9 (StAn):
Thats not strictly true: In tests were were able to make far bigger ISO images such as 4.7GB. An under OS 3.9 the file was actually created but reported as -61Mb !

Obviously when we went to burn this ISO image, DVDRecord complained about the ISO image's integrity and we couldnt complete the burning process :-(

So you have to keep ISO images down to less than 2Gb on the Amiga.
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 12 of 13ANN.lu
Posted by Metalheart on 05-Mar-2004 19:31 GMT
In reply to Comment 11 (SWAUG):
So, if understand correctly, if i have a HD with about 3 or 4 Gb of MP3's, I cant copy (burn) them to DVD in one go ? I have to do it in 2 chunks of 1.5 or 2 Gb ?

correct ?

Martin
SWAUG REVIEW: LiteOn DVD ReWriter On Amiga : Comment 13 of 13ANN.lu
Posted by Raffaele on 05-Mar-2004 22:51 GMT
In reply to Comment 12 (Metalheart):
Mr. Metalheart wrote:

>So, if understand correctly,
>if i have a HD with about 3 or 4 Gb of MP3's,
>I cant copy (burn) them to DVD in one go ?
>I have to do it in 2 chunks of 1.5 or 2 Gb ?

Hum... good question Metalheart...

My questions are these now:

How much good is the handling of a multi session-DVD on Amiga???

Is it possible?
Considering the fact that the AmigaOS sees a multi-sessioned CD, as an entire medium (if I remember well) AND not as a partitioned media (such as HDs).

This fact means that OS must read the entire structure and the entire weight in MB of the medium itself (i.e. whole 650 MB on a HD) with all the problems of that fact implies regarding DVDs (i.e. the DVD will be read a an entire medium and will return an error)

Does it means that we can't burn a DVD over 2Gig, whatever is the situation?

Does this means that the space over 2Gig should being accessed ONLY with hacking tecniques such as considering space of the DVD over 2 Gig as another medium?
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