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→Quota File
== Quota File ==
== Quota File ==
The inner data of <code>Quota.dat</code> is 0x48 bytes with the following format. The exact function of this file is unclear.
The inner data of <code>Quota.dat</code> is 0x48 bytes with the following format. The file seems to limit the extdata total size.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
| 0x08
| 0x08
| 4
| 4
| 0x1000, block size?
| 0x1000, block size
|-
|-
| 0x0C
| 0x0C
| Always 126. Probably device directory capacity. See the [[#Device Directory Capacity]] more information.
| Always 126. Probably device directory capacity. See the [[#Device Directory Capacity]] more information.
|-
|-
| ...
| 0x10
|
| 4
| Always 0?
| The meaning of other fields is unknown
|-
| 0x14
| 4
| Max number of blocks
|-
| 0x18
| 4
| Always 0?
|-
| 0x1C
| 4
| Free blocks remained
|-
| 0x20
| 4
| Always 0?
|-
| 0x24
| 4
| Always 0?
|-
| 0x28
| 4
| Equal or greater than the free blocks number?
|-
| 0x2C
| 4
| Always 0?
|-
| 0x30
| 4
| ID of most recently mounted Extdata image. Same as the one in [[Inner_FAT#Filesystem Header]]
|-
| 0x34
| 4
| Always 0?
|-
| 0x38
| 4
| Always 0?
|-
| 0x3C
| 4
| Always 0?
|-
| 0x40
| 4
| ?
|-
| 0x44
| 4
| Always 0?
|}
|}