Sujet Compression et partitionnement d'un gros fichier

Citation : The dialog contains the following items:
- destination archive name

Enter the name manually or press the "Browse" button to browse for the archive name. You may enter a name containing a disk letter or the full path to the archive.
- "Profiles" button
Opens the menu allowing to create new, organize and select compression profiles. Compression profiles allow you to quickly restore previously saved compression options or to specify default options for this dialog. WinRAR provides a few predefined profiles optimized for creating e-mail attachments, backup files and other operations. Please see the topic Compression profiles for more information.

- archive format (RAR or ZIP)

If ZIP format selected, some advanced options, not supported by this archive format, will be disabled;

- compression method
- volume size in "Split to volumes" field, if you wish to create volumes

By default it is entered in bytes. But if you add a lowercase letter 'k' at the end of the volume size, the entered value will be considered as kilobytes (multiplied by 1024). Use an uppercase 'K' to denote thousand of bytes (multiply by 1000), 'm' means megabytes and 'M' - million of bytes. It is also possible to select the volume size from the list associated with this item. Note that if you are archiving to a removable disk, you may select "Autodetect" from the list and WinRAR will choose the volume size automatically for each new volume.

- Update mode:

Add and replace files (default)
Always replace archived files, which have same name as files to be added. Always add those files, which are not present in the archive.
Add and update files
Replace archived files only if added files are newer. Always add those files, which are not present in the archive.
Freshen existing files only
Replace archived files only if added files are newer. Do not add those files, which are not present in the archive.

Synchronize archive contents
Replace archived files only if added files are newer. Always add those files, which are not present in the archive. Delete those archived files, which are not present in the added files. It looks similar to creating a new archive, but with the one important exception: if no files are modified since a last backup, the operation is performed much faster than the creation of a new archive.

- "Delete files after archiving" option

Remove successfully archived source files

- "Create SFX archive" option
Creates a self-extracting archive (exe file), which can be unpacked without using any other programs. You may select the type of SFX module and set a few other SFX parameters like a destination folder in the Advanced options of this dialog.
- "Create solid archive" option
Creates a solid archive. Usually gives higher compression ratios, but applies some restrictions. Read the description of solid archives for more details.

- "Put authenticity verification" option
Put, in the archive, information concerning the creator, last update time and archive name. In archive management mode it is possible to read the authenticity information using the Show information. In order to enable the authenticity verification feature, the program must be registered. Please read the License and registering information chapter for more information.

- "Put recovery record" option

Adds the recovery record, which may help to restore an archive in case of damage. You may specify a size of the recovery record in the Advanced options of this dialog. The default value is about a percent of the total archive size.

- "Test archived files" option
Test files after archiving. This option is especially useful if "Delete files after archiving" is also enabled. In this case files will be deleted only if archive had been successfully tested.
- "Lock archive" option

A locked archive cannot be modified by WinRAR. You may lock important archives to prevent accidental modification.