Sims 4 Cas File
Case Files
Cas File Format

1Cartridges
2Cassettes
3Disks
- 3.1.DSK

CAS files use the filename CascadeInfo.cas. These files can potentially become corrupt if the computer unexpectedly crashes, denying access to the software. If this occurs, consult the Autodesk support to resolve the issue. By default, the CascadeInfo.cas file is located in the following directory: Windows Vista/7: C: ProgramData Autodesk ADLM. The format of the 835 file will show multiple checks and/or payment information tied to the provider group or individual provider on a given day in one or multiple ERA files. Checks and/or payment information can be bundled and uniquely identified within the same 835 file. CAS uses sessions to track users and offers a full Security interface to protect data at the file level, as well as the column level. The sessions provide isolation for the user, which protects the integrity of the server. The purpose of connecting to CAS is to execute server requests. A user must create a session to submit a request. Click Delete Files. Click OK on the Delete Files dialog box. Close your browser. Click Start, select Settings and Control Panel. Double-click Internet Options. Click Delete Files. Click OK on the Delete Files dialog box. Safari 1.x for Macintosh. Click the Safari menu and selectEmpty Cache.

.ROM

ROM files are a raw byte capture of the data contained in a cartridge — a 128kb cartridge will produce a 128kb cartridge image.

They do not contain information about the hardware contained on the cartridge, if any: its paging mechanism, additional sound chips or any other feature. Since many of these images were generated on real MSX hardware rather than by pulling ROM chips, some 32kb images have their 16kb banks transposed as an effect of the means of capture.

An emulator must therefore adduce a lot of extra information in order properly to handle a ROM file; common solutions include ahead-of-time heuristics, cartridge image databases and dynamic machine reconfiguration at runtime.

.CAS

A CAS file is a capture of the decoded bytes stored on an MSX cassette in BIOS format, which uses a defined byte sequence to describe a header (i.e. a period of constant tone) of 0x1f, 0xa6, 0xde, 0xba, 0xcc, 0x13, 0x7d, 0x74. That sequence produces a header only if found within the file on an eight-byte boundary (i.e. starting at offset 0, or at offset 8, or at offset 16..).

A CAS file does not record:

the timing or spacing of stored data, including its baud rate and any gaps on the tape;
the difference between a long and short header.

A CAS file cannot contain:

data in any encoding other than that used by the MSX BIOS;
any file that includes the header byte sequence 0x1f .. 0x74 on an eight-byte boundary;
any file that is not a multiple of eight bytes in length other than as its final file.

It was originally designed to allow primitive emulators to implement a BIOS hack for tape loading and saving rather than emulating real hardware.

Some tools attempt to reintroduce long and short headers, and gaps, by guesswork based on file contents — if the header sequence is followed by ten bytes of the same value and those bytes are of value 0xd0, 0xd3 or 0xea then output the header as a gap followed by a long header. Otherwise output a short header, with no preceding gap.

.TSX

TSX is an extension of the TZX format, which increases the version number to 1.21 and adds a new block with ID 4B to hold Kansas City Standard (i.e. the standard used by the BIOS) data compactly.

TZX is a heavyweight file format with a substantial amount of unnecessary complexity and redundancy but is capable of compactly describing an audio cassette at a very high resolution such that any original MSX tape can be preserved exactly.

.WAV

WAV[1] is a sprawling audio reproduction file format capable of containing raw or compressed audio data, using various different algorithms, at various resolutions and precisions.

It can exactly capture an original tape at a greater precision than a real cassette is capable of reliably maintaining.

As implemented by openMSX, both raw 8- and 16-bit WAV files, and those encoded with the MS-ADPCM compression scheme are supported.

All MSX disks are encoded with an MFM ('double density') bit stream; the WD2973 used in all MSX1, almost all MSX2 and Sony/Ciel MSX2+ disk interfaces uses a dedicated input pin to select between FM ('single density') and MFM encoding and are conventionally wired so that only MFM mode is available.

The TC8566AF (used in Turbo R, Panasonic/Sanyo MSX2+ and Panasonic MSX2 computers) is a completely different controller which implements the same command set Intel 8272 or NEC 765, as used in the IBM PC, rather than being a member of the WD family. FM or MFM selection occurs within the byte stream so those machines can read and write FM content but no known examples of such disks exist.

In contemporaneous MSX software the terms 'single density' and 'double density' are sometimes used with a less-common meaning of track density: single density is 40 tracks, double density is 80 tracks.

.DSK

A DSK is a raw sector dump of an MSX-DOS format floppy.

Sectors are ordered in the file:

by sector number as a primary key;
by side as a secondary key; and
by track number as a tertiary key.

So, for an 80-track double sided disk they are ordered as:

all nine sectors from side 1, track 1; then
all nine sectors from side 2, track 1; then
all nine sectors from side 1, track 2; then
all nine sectors from side 2, track 2;
etc.

DSK files contain no information about the disk geometry.

MSX floppies may be single or double sided but will usually be around 80 tracks — almost always 80 or 81. Emulators can therefore guess disk geometry based on file size: a 720kb image is double sided, a 360kb image is single sided.

Just as on the IBM PC, the first sector on a track is numbered as sector 1. So the nine sectors on each track are numbered 1 to 10. The first track is numbered as track 0. So if there are 40 tracks then they are numbered 0 to 39.

DSK files cannot properly describe:

any disk that does not conform exactly to the FAT standard of sectoring (i.e. size, IDs and relative placement) across its entire surface.

They therefore cannot capture most copy protection schemes, native CP/M floppies or any other kind of disk.

.MSX

MSX files are very rare and are exactly equivalent to DSK files in size, fidelity and exposition. However they differ from DSKs in track arrangement, arranging as:

sector number as a primary key;
track as a secondary key; and
side as a tertiary key.

So, for an 80-track double sided disk they are ordered as:

all nine sectors from side 1, track 1; then
all nine sectors from side 1, track 2; then
..
all nine sectors from side 1, track 80; then
all nine sectors from side 2, track 1;
etc.

.IMG

An IMG file is a DSK file with a single additional byte providing drive geometry.

The first byte in the file can be:

1, to indicate a single-sided 360kb disk image; or
2, to indicate a double-sided 720kb disk image.

That byte is followed by a dump of sector contents in the same order as DSK.

.DMK

A DMK[2] file is a sampling of the decoded byte stream stored on a floppy, with additional metadata to identify FM and MFM ID address marks.

It does not specify t

Cas File