I was able to reproduce this by making my own 7z file from a WAV file
that I converted from a MP3 with Audacity. I uploaded it to
http://zimage.com/~ant/temp/MP3toWAVsample.7z (38.3 MB). Please try
extracting with mac OS Big Sur v11.4's Archive Utility app and playing
its WAV file.

In comp.sys.mac.apps Ant <ant@zimage.comant> wrote:
> Hello.

> Is it me or does mac OS Big Sur v11.4's Archive Utility app cannot
> extract *.7z files correctly?

> I got a huge 141 MB 7z file (can't share it to the public) with a WAV
> file inside. It was extracted without errors, but none of the players
> (Windows' and third parties too) could play this 250 MB WAV file after
> extracting it. I tried The Unarchiver app to extract the same 7z file's
> WAV file and play it. No problems. What the heck?

> According to file command, it says "... 7-zip archive data, version
> 0.4". Does Big Sur v11.4's Archive Utility app have issues with *.7z
> files? :/

> Thank you for reading and hopefully answering soon. :)

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On 2021-05-28, Ant <ant@zimage.comANT> wrote:
> I was able to reproduce this by making my own 7z file from a WAV file
> that I converted from a MP3 with Audacity.

What did you use to create it? Are any specific options set in that app
for 7z archives?

> I uploaded it to http://zimage.com/~ant/temp/MP3toWAVsample.7z (38.3
> MB). Please try extracting with mac OS Big Sur v11.4's Archive Utility
> app and playing its WAV file.

On both of these systems:
* macOS 10.15.7 (Catalina)
* macOS 11.2.3 (Big Sur)

Archive Utility: archive gets extracted but is not a proper WAV file and
cannot be played.

The Unarchiver: archive gets correctly extracted and can be played.

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In comp.sys.mac.software Jolly Roger <jollyroger@pobox.com> wrote:
> On 2021-05-28, Ant <ant@zimage.comANT> wrote:
> > I was able to reproduce this by making my own 7z file from a WAV file
> > that I converted from a MP3 with Audacity.

> What did you use to create it? Are any specific options set in that app
> for 7z archives?

I just right click on the file in Windows Explorer and its defaults with
the 64-bit 7-Zip program from https://www.7-zip.org. I tried add to
archive manually with its options
(https://justpaste.it/img/69bd8aa11a51f92afa0b0d57ded0a00d.gif). Both
were in my over decade old, updated 64-bit W7 HPE SP1 PC.

> > I uploaded it to http://zimage.com/~ant/temp/MP3toWAVsample.7z (38.3
> > MB). Please try extracting with mac OS Big Sur v11.4's Archive Utility
> > app and playing its WAV file.

> On both of these systems:
> * macOS 10.15.7 (Catalina)
> * macOS 11.2.3 (Big Sur)

> Archive Utility: archive gets extracted but is not a proper WAV file and
> cannot be played.

> The Unarchiver: archive gets correctly extracted and can be played.

Thank you for reproducing it on your end. :) Wow, even Catalina. BTW,
how come you're not on v11.4 for Big Sur?
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On 2021-05-28, Ant <ant@zimage.comANT> wrote:
> In comp.sys.mac.software Jolly Roger <jollyroger@pobox.com> wrote:
>> On 2021-05-28, Ant <ant@zimage.comANT> wrote:
>>> I was able to reproduce this by making my own 7z file from a WAV file
>>> that I converted from a MP3 with Audacity.
>
>> What did you use to create it? Are any specific options set in that app
>> for 7z archives?
>
> I just right click on the file in Windows Explorer and its defaults with
> the 64-bit 7-Zip program from https://www.7-zip.org. I tried add to
> archive manually with its options
> (https://justpaste.it/img/69bd8aa11a51f92afa0b0d57ded0a00d.gif). Both
> were in my over decade old, updated 64-bit W7 HPE SP1 PC.

Ok, thanks.

>>> I uploaded it to http://zimage.com/~ant/temp/MP3toWAVsample.7z (38.3
>>> MB). Please try extracting with mac OS Big Sur v11.4's Archive Utility
>>> app and playing its WAV file.
>
>> On both of these systems:
>> * macOS 10.15.7 (Catalina)
>> * macOS 11.2.3 (Big Sur)
>
>> Archive Utility: archive gets extracted but is not a proper WAV file
>> and cannot be played.
>
>> The Unarchiver: archive gets correctly extracted and can be played.
>
> Thank you for reproducing it on your end. :) Wow, even Catalina. BTW,
> how come you're not on v11.4 for Big Sur?

Inertia, mostly. : ) I have several Macs of various models here at home,
and while some run Big Sir, others run Catalina, mostly because I
haven't yet taken the time to verify that all of the stuff I have
installed is fully compatible with Big Sur. As an example, one of the
headless Mac minis in my server closet is still running Catalina because
it runs several critical Docker containers that must continue running
24/7 without issue, and I haven't had time to test them in Big Sur. I'll
get around to it eventually - no rush.

--
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

In comp.sys.mac.apps Jolly Roger <jollyroger@pobox.com> wrote:
> On 2021-05-28, Ant <ant@zimage.comANT> wrote:
> > In comp.sys.mac.software Jolly Roger <jollyroger@pobox.com> wrote:
> >> On 2021-05-28, Ant <ant@zimage.comANT> wrote:
> >>> I was able to reproduce this by making my own 7z file from a WAV file
> >>> that I converted from a MP3 with Audacity.
> >
> >> What did you use to create it? Are any specific options set in that app
> >> for 7z archives?
> >
> > I just right click on the file in Windows Explorer and its defaults with
> > the 64-bit 7-Zip program from https://www.7-zip.org. I tried add to
> > archive manually with its options
> > (https://justpaste.it/img/69bd8aa11a51f92afa0b0d57ded0a00d.gif). Both
> > were in my over decade old, updated 64-bit W7 HPE SP1 PC.

> Ok, thanks.

You're welcome. Just for kicks, I made 7zip compress the same WAV file
into a zip file to retest. No problems even though bigger size.

> >>> I uploaded it to http://zimage.com/~ant/temp/MP3toWAVsample.7z (38.3
> >>> MB). Please try extracting with mac OS Big Sur v11.4's Archive Utility
> >>> app and playing its WAV file.
> >
> >> On both of these systems:
> >> * macOS 10.15.7 (Catalina)
> >> * macOS 11.2.3 (Big Sur)
> >
> >> Archive Utility: archive gets extracted but is not a proper WAV file
> >> and cannot be played.
> >
> >> The Unarchiver: archive gets correctly extracted and can be played.
> >
> > Thank you for reproducing it on your end. :) Wow, even Catalina. BTW,
> > how come you're not on v11.4 for Big Sur?

> Inertia, mostly. : ) I have several Macs of various models here at home,
> and while some run Big Sir, others run Catalina, mostly because I
> haven't yet taken the time to verify that all of the stuff I have
> installed is fully compatible with Big Sur. As an example, one of the
> headless Mac minis in my server closet is still running Catalina because
> it runs several critical Docker containers that must continue running
> 24/7 without issue, and I haven't had time to test them in Big Sur. I'll
> get around to it eventually - no rush.

Ah, understood. :)
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